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My friend just showed me this video about 2 weeks ago and I just now decided to watch this a week before the December 7 SAT test and my God why is this calculator just casually built into a test like this 💀 I ain't complaining though but DAMN!
@@notmarcus17 is Desmos an app or a device that allowed to be taken into the test ?! 😓 I'm new to SAT and my teacher just teaches us the regular method without using this "Desmos"?! Moreover, if it was an app, can we use it online? Or that we have to download it before having the SAT test?! Lastly, is "Desmos" allowed worldwide?!!?!? Thanks a lot for answering my questions 💖 Have a nice day 🔥
0:55 single var equations 1:54 system of equations 4:00 systems of inequalities 7:40 quadratics 13:07 mean and median 13:48 functions 14:43 circles 15:29 equivalent expressions 16:45 do/do not use desmos
Thank you for not making a half bajillion videos that all just try to scare you into buying their 2 thousand dollar course and occasionally advertising a “free diagnostic test” that makes you give them your email and make an account just to get a literal copy of college boards nonadaptive practice test #4 and an atrocious google sheet that just tells you which answers are right which I could also find for myself on college boards website… just thanks for making actually useful stuff you’re the only SAT youtuber who is sane
When I took the SAT, I was surprised to see how few people actually used desmos. At the end of the test, everyone had a ton of scratch work on their paper, but I just had a few triangles
Hello, Last night, before the October SAT I was about to go to sleep when I stumbled upon your video. This was a lifesaver. I got up at 5:30 the next morning and spent over 30 minutes studying how to input equations into Desmos and as someone who struggles in the math section, this was very, VERY helpful.
I was addicted to desmos in highschool to the point that I'd open the calculator as if i was opening a game. Thanks to that my brain got attuned to simple algebra & their plots along with basic calculus way before normal.
@@learnsatmath🗣️🗣️🗣️📛📛🗣️🗣️. The translate button has never been more useless. Edit- There was the translate button beneath his reply which did absolutely nothing.
Everything he said in the video, i’ve been spending a min doing it by hand. Imo, the strat is knowing how to do them without using desmos, as u can always come back and use desmos to verify at the end.
My SAT is the morning after this comment (NOV 2nd 2024). I haven't studied ANYTHING, I graduated high school in November of 2023 and haven't touched math since. I'm not even American nor live in America or any other English speaking country. I'm going to take the SAT with only my basic math and English knowledge that have been untouched for about a year. Literally 0 hours of studying, but I'm sure that with the help of this video, I will make it. Whatever my score is, I will come back and update this comment to prove if studying is necessary or if my life was ruined by my actions (severe procrastination).
HAHA OMG I graduated highschool may 2023 and have done a few tutor sessions, other than that, i haven't done much math, i'm very curious to find out what we'll get lmao (im terrible at math)
tmro morning is my SAT exam , and the time now is 11:50 pm , this dude , fucking saved my ass , i felt i learn many things , and the fact the video is edited with music , sounds , jokes stuff i really didnt feel tired watching this , i laughed my ass out for his explanation , omg thank you , wish me all the best :)
my teacher stalked all of us in our test room and said we weren't allowed to use it ... still made a 660 though but i literally could have gotten 700+ if i had desmos or maybe im just lazy idk
Idk why, but I've never used desmos in my practice exams for the sat(just felt illegal). I take the exam in a couple of days and this is a game changer. Thanks for the video!
i took the sat 3 years ago - i thought they were crazy for letting us use a calculator on half of the math section. this is actually insane. everyone should be getting perfect scores omg
Tbf they made the hardest questions (can’t rly use seamos for those) much harder than any of the ones you would get on the paper SAT so I assume that helps balance things out a bit. Still tho it’s insane
@@pandathegaminglegend5700 when compared to similar difficulty, none of the DSAT questions are harder than the paper sat. everything is easier, my math score went from a 680 to a 760 and my RW went from a 670 to a 720 just because of the digital switch.
@@SenayTewolde maybe that just means ur not too great at mental math (or some other reason). but the hardest questions are inarguably more challenging.
@@pandathegaminglegend5700 mental math abilities have little to do with question difficulty. they may be hard for you, but I think overall its easier, since its a lot less trigonometry. when did you take the paper sat?
This works so well took a 1050 practice score from 2 days ago to a 1220 still got a bit more time till the SAT this weekend hoping to crack a 1300. (Update) scored a 1220 but shaping up to take another test in October hoping for the best
Ive taken the SAT twice, first on paper, 2nd digital and I have my last SAT in October. My current score is 1120 (I know its awful) but I'm just shooting for a 1240. Any tips? I took a practice test in bluebook using desmos and still got an 1100🙁
@@memorychili5653 I’d advice reviewing the practice test on khan and checking your score report on blue book to see areas of weakness. Also dw to much about blue book scores I got a 1140 on practice test four but a 1220 on 3 it’s ok to fluctuate
1:43 if you want to find all t in desmos, you can do this 2x² - 4x = t 2x² - 4x - t = 0 using discriminant formula b² - 4ac if b² - 4ac > 0, quadratic has 2 real roots if b² - 4ac = 0, quadratic has 1 real root if b² - 4ac < 0, quadratic has no real root (or has imaginary root) we want b² - 4ac < 0 (-4)² - 4*2*(-t) 16 + 8t < 0 plug this in desmos and you have the solution :) or you can do by hand 8t < -16 t < -16/8 t < -2
I still find it funny that I figured this out in 8th grade and was never told it was abnormal until now. I'm a junior, about to take the PSAT in under a month. I discovered this on my own almost 3 years ago. And there are people considered much smarter than me who have no idea. Fascinating.
Excellent video. This is truly an insane update to the SAT. On the one hand I think it's great to embrace computer tools which people will freely use in real life and it's silly to train students as if that's not the case. But on the other hand, you literally do not need to know anything about algebra in order to solve ANY equation. That is nuts!
It's important to train students to both be able to use computer tools and by hand What are you gonna do if you forgot your calculator or if the light cuts off?
Equivalent expressions problems still require algebra so it's not COMPLETELY gone. In my opinion, DESMOS itself is fine, but a lot of the PROBLEMS that are solved with DESMOS aren't good. Finding the vertex of a quadratic or the solution to a system of equations doesn't say much about your logical thinking or problem solving abilities, with or without DESMOS.
Tho it is worth noting that most of these problems could be solved by a normal Ti-84’s graphing features if you learn them well enough, it’s just a bit too clunky/slow to be the meta
@learnsatmath Also, brother, equivalent expressions problems don’t require algebra so long as the answer is multiple choice. Just subtract the answer choices from the first expression and the one that’s equal to 0 is the equivalent one. You can do this really quickly by subtracting a function from a list of functions like [x, x^2] - x^2. I’m in college now (thank goodness) but I used this strategy on my Ti-84 when I took the SAT.
I have the sat tomorrow morning and ive been struggling to get better than a 590 on the math section (unfortunately that is my highest score) but this video explained everything that I didn't understand with the most fluidity, and because of this video I think I'd have to be an absolute buffoon in order to get less than 700, thank you so much, know that this is a godsend
Craaaaaaaazy vid bro, spent few hours just writing everything I heard in your vid down. Glad I didnt take the June SAT and decided to take the august one, this video came in time.
@@kittymiaowmiaow Ya, there have been no announcements its being removed. I just said what I said as this video is recent and I wouldnt have taken the SAT with the knowledge in this video
@@ok_e3w thanks a lot 💖 I'm in Asia and my teacher just teaches us the regular calculating method without using this "desmos", this is soooo new to me. Thanks for answering, have a nice score bro 🔥
been waiting for someone to tell everyone about this!! you literally can put 3/4 of the test into desmos if you just know how to use it and ive been telling all of my friends and they either don't believe me or don't have the patience to learn
excellent video im retaking my sat in about a week which is fun i used desmos last time (and it was a godsend since i had misplaced my graphing calculator then) i got a 740 FOR THE MATH SECTION but am hoping to get even higher
I actually slightly disagree with this video, towards the end he says that you shouldn't use the calculator on certain questions, but you really should be using Desmos whenever you can to check your answers, because if you made a mistake when calculating the answer then Desmos would identify the mistake. The only exception to this would be if you were low on time or if the answer was incredibly obvious.
Thank you so much man, I've tried to practice to get my score higher than a 710 (part of that is bc I use desmos), but I always run out of time on the second module. This video kept me entertained and made my brain willing to listen to what you say. I'll practice these extra techniques tonight to do last minute prep for tomorrow morning! Thanks a lot and wish me luck!
Thank you so much! I watched this video twice, once like three days before my SAT and another time on the car ride to the testing center, and it helped so much! My math score went from 690 to 760 despite not studying 😅. Must admit I got super lucky with the problems though. I was able to plug a good 80% of them into Desmos!
Did you find the right answer? I need helps? Umm yeah I thought it was 0 because I just took the smallest two intervals 0-20 on A and 0-20 on B and averaged them to get 15-15=0 which is the difference I guess. . .
@@adambacon5314the intervals should be by 10 so you would look at the difference of 10-20 on the first graph and 10-20 on the second graph and see that they are only different by 1
Wow. I knew Desmos was pretty useful, and was surprised when it was on the SAT, but I never knew it could be this useful. I'll definitely have to rewatch this video again the day I take the test.
Taking it tomorrow I'll let you know how I do! Praying for a 1500+, have not studied at all except for the August one! Lets goooooo time to lock in I'll lyk. Great vid btw bro
Yes, desmos truly is the best! I'm so glad someone is *finally* putting this out there! People really underestimate that little gem. And with how dedicated the desoms team is, I'm sure it will become way more powerful in the future. I really can't wait to finally be able to make an MMORPG in desmos. It's only about 10 years away. Only 10 years. I'll still be pretty young in 10 years, so that's very good news. Especially since I only have to wait ONCE.
I didn’t realize my PSAT was tomorrow and I’m a junior, meaning I’ve had to.study all night, and I’ve done fine on all reading and writing practice tests, the only thing I’ve been struggling with is math. Who knew that something I never had an interest in was going to be my downfall in one of the most important tests of my life?
10:54 if you get into this situation and you don't wanna do trial and error, you can: 1. plot the quadratic as f(x) 2. type in f'(x) = m (m is the slope of the line, in this case 3), then record the intersection of the vertical line and the parabola 3. Type the line equation onto desmos, replacing y with the y coordinate of the intersection earlier, x with the x coordinate, and a with x so desmos solves the equation for you. The x that comes out of this is the answer (in this case, it's -8)
At 10:54 you can't actually plug in the possibly answers choices for x into the variable a. The answer choices happens to include -8 but didn't have to. The final answer is x=6. methods: 1.If you use trial and error in Desmos you might eventually get to a=-8. Once you have a=-8 you can solve the system or just look at the point. (X,Y) The x-coordinate of the point is 6. x=6 2.or (without trial and error and, also, little use of Desmos) since it is only a one point intersection we know b^2 -4ac = 0 That's part of the quadratic equation. The square root of 0 is 0. now you have just x=-b/2a x=6 (the rules for intersections btw linear and quadratic: if it was a 2-point intersection then b^2-4ac>0 if one point then b^2-4ac=0 if no point intersect then b^2-4ac
@@aynakhankhojamuratova6266 He's using Calculus. Basically the slope of the tangent line at a point on a graph is equal to the value of the derivative at that point. So the derivative of f(x), which is f'(x), must be 3 (slope of the 2nd equation) at their point of intersection b/c when they intersect once, the line is a tangent line. Wouldn't recommend memorizing this unless you have learned Calculus.
At 10:54 you can't actually plug in the possibly answers choices for x into the variable a. The answer choices happens to include -8 but didn't have to. The final answer is x=6. methods: 1.If you use trial and error in Desmos you might eventually get to a=-8. Once you have a=-8 you can solve the system or just look at the point. (X,Y) The x-coordinate of the point is 6. x=6 2.or (without trial and error and, also, little use of Desmos) since it is only a one point intersection we know b^2 -4ac = 0 That's part of the quadratic equation. The square root of 0 is 0. now you have just x=-b/2a x=6 (the rules for intersections btw linear and quadratic: if it was a 2-point intersection then b^2-4ac>0 if one point then b^2-4ac=0 if no point intersect then b^2-4ac
Oh very good catch. Can't believe I missed that. Your 2nd option is probably the optimal approach, but it's worth mentioning that you need to rewrite the equation as 0 = 2x^{2}-24x+64-a before getting -b/2a.
You could also use calculus to solve it. Because the first equation is a quadratic and the second is linear and it says they only intersect once, the second equation must be a tangent line to the first. You can tell the slope of the second equation is 3. You can then take the derivative of the first equation, set it equal to 3, and solve for x. 4x-21=3 so x=6
honestly, i just used derivatives. 3 seconds without desmos. but then again, that isn't in the skill level required in the sat so its kinda like using a calculator for basic addition and subtraction.
I'm taking mine Dec 7th. I got an 1150 on a practice test at the end of the summer right before school. I hadn't done anything in few months. I've been reviewing since the beginning of thanks giving break and I'm hoping I can get above a 1400. I'll comment with my score. Its going to be weird looking back at this. me from the past has know Idea weather he will bomb it or not. Hopefully future me wont be sighing!!!
@@ahnet.69 Howd you do. I did well enough that both of the 2nd modules were a lot harder. I did really well with the first math module but not very well with the second one. Think I did pretty well with English overall but then again, so does everyone.
@@everythingballistic8812same story here, the first module was great for math, aced it, but the last few questions, like 6 of em absolutely KICKED my ass on the second module lol. Thinking on a 1300, not sure though😅
@@theamazintaco06 exact same with me. there were about 6 questions in the middle that I had no clue what the answer was. maybe I got lucky and got some of them, but some I just typed a random answer in
OMG same! I also take my SAT oct 5th. But we win these. slope intercept form is y= mx + b personally what I would do is graph the first equation on desmos, find the slope, then rewrite the second equation in the slope form as well. the slope of the first equation is 1/4 and second equations slope is 2/x (x as a sit in for t) we just need to make them equal, and 1/4 is equal to 2/8. 8 is where our x (t) used to be, so t = 8.
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fr
i know stuff in desmos
WTF man, why did you reveal the desmos secret.
does the sat ever do imaginary numbers or nah cuz desmos dosent do imaginarys
If you cut up the shirt You can fix the 'green screen'
I never thought the guy from ratatouille would end up teaching math SAT
yeah same
Omg I thought the same !! He is fine tho
His name is Linguini.
Stop, he's cute 😔✨️
@@iamthatgirlyoudreamof5182 yesss
The fact that desmos is given on the SAT is still mindblowing to me
For the sake of this video I hope it stays that way 🙏
@@learnsatmath ITS GONEEEEEEE
@@Pota502 EXCUSE ME?????????????????????????????
WHAT ARE YOU TALKING ABOUT
Umm what, no it's not @halpqpq11
@@te4rsoverbeers Yeah bro scared me !!!
Literally, and I mean, LITERALLY watching this video 1 hour before SAT feels like it added a lot of knowledge to my brain
good luck buddy
Me too bro😭
hope you do well 😞😞
how was yours????
how was your exam
this man knows how to make a video, he used classical music to gain the focus and keep the brain awake. WOW
I KNOW RIGHT
wallahi
BRO AND HES NOT BORONG AT ALL. I hate everything math but he makes it lowkey enjoyable
My friend just showed me this video about 2 weeks ago and I just now decided to watch this a week before the December 7 SAT test and my God why is this calculator just casually built into a test like this 💀 I ain't complaining though but DAMN!
Dude i'm taking it that same day. Ive known about desmos for a while now and have been using it for pre calc. Hopefully I'll do well
And I decided to watch 2 days before lol
im watching this rn dw
@samhithaajjarapu2690nice
Man I'm watching it 12 hours before the exam
Ive spent 4 months learning SAT math without desmos, and this just made my life 10x easier 🙏
4 months is crazy bro keep it up
@@sadcat7031 Bro is going to score 1601 in the SAT
i thought my 1 month was bad
I don't know why they allowed Desmos on the SAT but I got an 800 on the math section so I'm not complaining
same 790
Hi, congrats on that perfect score!!! Did you use demos for most of the problems, all of them, or...?
@@kyliechristina234 a lot of them, especially the medium ones where you can plug things in instead of having to calculate it yourself.
@@notmarcus17 is Desmos an app or a device that allowed to be taken into the test ?! 😓 I'm new to SAT and my teacher just teaches us the regular method without using this "Desmos"?! Moreover, if it was an app, can we use it online? Or that we have to download it before having the SAT test?! Lastly, is "Desmos" allowed worldwide?!!?!? Thanks a lot for answering my questions 💖 Have a nice day 🔥
@@DutchDriverrsame
Bro, you actually managed to grab my attention span
Fr amazing
Two days before the SAT and this is saving my life!! God bless you
good luck tomorrow queen !! same here
@@medievalrat324 good luck to you too babe!!! We’re going to do great!! (Delusional) (manifesting) (crying)
@@toto.dreamer we got this in the BAG (im relying on my prayers atp)
Howd the two of you do
@@disciplinedevare you done with sat?
0:55 single var equations
1:54 system of equations
4:00 systems of inequalities
7:40 quadratics
13:07 mean and median
13:48 functions
14:43 circles
15:29 equivalent expressions
16:45 do/do not use desmos
Thx bruv
Hey pretty lady!
Thank you so much for this!😄😄
GYAT
Tysm
Thank you for not making a half bajillion videos that all just try to scare you into buying their 2 thousand dollar course and occasionally advertising a “free diagnostic test” that makes you give them your email and make an account just to get a literal copy of college boards nonadaptive practice test #4 and an atrocious google sheet that just tells you which answers are right which I could also find for myself on college boards website… just thanks for making actually useful stuff you’re the only SAT youtuber who is sane
test prep industry can be like that sometimes
thank you for making a comment that made me laugh lol
oddly specific example you have there. that didn't happen to you, did it?
@@aerobiesizer3968i was gonna say this is too specific 😭
When I took the SAT, I was surprised to see how few people actually used desmos. At the end of the test, everyone had a ton of scratch work on their paper, but I just had a few triangles
Hope that'll be me@
Can we use this during exam?
@@itachixx2559 it's a tool on every question of the online exam!
@@itachixx2559desmos? of course, they give it to you
@@itachixx2559 yes ofc
Hello,
Last night, before the October SAT I was about to go to sleep when I stumbled upon your video. This was a lifesaver. I got up at 5:30 the next morning and spent over 30 minutes studying how to input equations into Desmos and as someone who struggles in the math section, this was very, VERY helpful.
i got this today right after taking it 😊🔫
@@bakedbeanz4439same 😅
How much u scored @polarbearexplorer
what’d you end up getting?
what did u get?
I am taking the SAT again for the third time tomorrow and found this at the last moment. Thank you for your service, math Linguini.
ME TOO !!! good luck
Today is my first time
heyy how was it?
@@anush4 could’ve been better fs, my best advice to you, is to scroll thru the whole thing and start with the easy ones first
@@naizcur ooh, so do i go thru tutorllini desmos playlist?
they way you teach along with modern humor makes this so much better, great job and thank you for all the help man
I'm an SAT tutor since 2018... this is an excellent Desmos primer. Two thumbs up.
why was this lowkey funny and instructive at the same time
I was addicted to desmos in highschool to the point that I'd open the calculator as if i was opening a game. Thanks to that my brain got attuned to simple algebra & their plots along with basic calculus way before normal.
we going to harvard w this one 🙏🙏
frfr
@@learnsatmath🗣️🗣️🗣️📛📛🗣️🗣️. The translate button has never been more useless.
Edit- There was the translate button beneath his reply which did absolutely nothing.
@@c.jishnu378 frfr
Nah bc I'm trying to get a 1380+ to get into Darnell and I'm a horrible test taker so this is gonna help
(For reference I've gotten a 1140 and a 1260)
@@DutchDriverr atleast more then 1600 with every ECA there exits:)
Watching this the day before the SAT. Wish me luck🙏
Same.... All the best
@@Akzz_xosame
Everything he said in the video, i’ve been spending a min doing it by hand. Imo, the strat is knowing how to do them without using desmos, as u can always come back and use desmos to verify at the end.
My SAT is the morning after this comment (NOV 2nd 2024). I haven't studied ANYTHING, I graduated high school in November of 2023 and haven't touched math since. I'm not even American nor live in America or any other English speaking country. I'm going to take the SAT with only my basic math and English knowledge that have been untouched for about a year. Literally 0 hours of studying, but I'm sure that with the help of this video, I will make it. Whatever my score is, I will come back and update this comment to prove if studying is necessary or if my life was ruined by my actions (severe procrastination).
I she. This same problem
I have
HAHA OMG I graduated highschool may 2023 and have done a few tutor sessions, other than that, i haven't done much math, i'm very curious to find out what we'll get lmao (im terrible at math)
literally same bro this shit is a literal lifesaver i have been beating myself up about this for the past four days
IM TAKING MINE TODAY TO😭😭😭
tmro morning is my SAT exam , and the time now is 11:50 pm , this dude , fucking saved my ass , i felt i learn many things , and the fact the video is edited with music , sounds , jokes stuff i really didnt feel tired watching this , i laughed my ass out for his explanation , omg thank you , wish me all the best :)
I graduated from Auburn in '93, yet here I am at the end of your video. Good job.
you might be a bit ahead
wait, they give u a fucking graphic calc and some dudes still fail tf
still gotta know how to use it lol its not chatgpt
my teacher stalked all of us in our test room and said we weren't allowed to use it ... still made a 660 though but i literally could have gotten 700+ if i had desmos or maybe im just lazy idk
@@aurora-cc6hkwhat the fuck is your proctor on? they give it to you i’m pretty sure you can take that up with the college board
@@aurora-cc6hkur teacher is bitchass😅
@@clipwtf what are the chances of us having the same pfp wtf
Idk why, but I've never used desmos in my practice exams for the sat(just felt illegal). I take the exam in a couple of days and this is a game changer. Thanks for the video!
i took the sat 3 years ago - i thought they were crazy for letting us use a calculator on half of the math section. this is actually insane. everyone should be getting perfect scores omg
The entire math section is now calculator
Tbf they made the hardest questions (can’t rly use seamos for those) much harder than any of the ones you would get on the paper SAT so I assume that helps balance things out a bit. Still tho it’s insane
@@pandathegaminglegend5700 when compared to similar difficulty, none of the DSAT questions are harder than the paper sat. everything is easier, my math score went from a 680 to a 760 and my RW went from a 670 to a 720 just because of the digital switch.
@@SenayTewolde maybe that just means ur not too great at mental math (or some other reason). but the hardest questions are inarguably more challenging.
@@pandathegaminglegend5700 mental math abilities have little to do with question difficulty. they may be hard for you, but I think overall its easier, since its a lot less trigonometry. when did you take the paper sat?
This works so well took a 1050 practice score from 2 days ago to a 1220 still got a bit more time till the SAT this weekend hoping to crack a 1300. (Update) scored a 1220 but shaping up to take another test in October hoping for the best
how was the sat
@@jicao went ok scored a 1220 but currently locking in to hopefully get a 1340 by Octobers test date 🤞
Ive taken the SAT twice, first on paper, 2nd digital and I have my last SAT in October. My current score is 1120 (I know its awful) but I'm just shooting for a 1240. Any tips? I took a practice test in bluebook using desmos and still got an 1100🙁
@@memorychili5653 I’d advice reviewing the practice test on khan and checking your score report on blue book to see areas of weakness. Also dw to much about blue book scores I got a 1140 on practice test four but a 1220 on 3 it’s ok to fluctuate
@@memorychili5653 also don’t beat yourself up you got it 👍. I got a 1080 on my first pen and paper SAT last November
Why is this lowk the most engaging video i hv ever watched tho ...
1:43 if you want to find all t in desmos, you can do this
2x² - 4x = t
2x² - 4x - t = 0
using discriminant formula b² - 4ac
if b² - 4ac > 0, quadratic has 2 real roots
if b² - 4ac = 0, quadratic has 1 real root
if b² - 4ac < 0, quadratic has no real root (or has imaginary root)
we want b² - 4ac < 0
(-4)² - 4*2*(-t)
16 + 8t < 0
plug this in desmos and you have the solution :)
or you can do by hand
8t < -16
t < -16/8
t < -2
Taking the august SAT and you are a lifesaver thank you!
Same here good luck!
Me too ! Good luck to all of us
Good luck!
Me too
Samee
I still find it funny that I figured this out in 8th grade and was never told it was abnormal until now. I'm a junior, about to take the PSAT in under a month. I discovered this on my own almost 3 years ago. And there are people considered much smarter than me who have no idea. Fascinating.
Excellent video. This is truly an insane update to the SAT. On the one hand I think it's great to embrace computer tools which people will freely use in real life and it's silly to train students as if that's not the case. But on the other hand, you literally do not need to know anything about algebra in order to solve ANY equation. That is nuts!
It's important to train students to both be able to use computer tools and by hand
What are you gonna do if you forgot your calculator or if the light cuts off?
Equivalent expressions problems still require algebra so it's not COMPLETELY gone. In my opinion, DESMOS itself is fine, but a lot of the PROBLEMS that are solved with DESMOS aren't good. Finding the vertex of a quadratic or the solution to a system of equations doesn't say much about your logical thinking or problem solving abilities, with or without DESMOS.
Yeah, I thought they would put some kind of open source (similar to ti-84) graphing calculator emulator and not fricking Desmos lol
Tho it is worth noting that most of these problems could be solved by a normal Ti-84’s graphing features if you learn them well enough, it’s just a bit too clunky/slow to be the meta
@learnsatmath Also, brother, equivalent expressions problems don’t require algebra so long as the answer is multiple choice. Just subtract the answer choices from the first expression and the one that’s equal to 0 is the equivalent one. You can do this really quickly by subtracting a function from a list of functions like [x, x^2] - x^2. I’m in college now (thank goodness) but I used this strategy on my Ti-84 when I took the SAT.
16 minutes and ZERO bullshit 🔥 (thank you!)
I love the genre of TH-cam comment where they're a popular TH-camr, but they're also in high school, so they comment on random sat videos
YOURE SO FUNNY I LOVE YOU (12 hours before my SAT)
How was it? Your score pls 😭
I went from 550 to 700 on math just from watching this video and taking good notes.
actually insane
my score is 550 so im praying i do the same lol
@@clampagne You got that bro
I have the sat tomorrow morning and ive been struggling to get better than a 590 on the math section (unfortunately that is my highest score) but this video explained everything that I didn't understand with the most fluidity, and because of this video I think I'd have to be an absolute buffoon in order to get less than 700, thank you so much, know that this is a godsend
Us moment! I am having my exam tommorow and I feel I am cooked
@@ankitbera943 just focus heavy on reading and writing since it's much easier than trying to tackle math really fast
i could confidently say i got a low 700 to mid 600s as an estimate but idk about math; hoping for a 1300 or higher
So I have mine in a couple of months, and I wanna know, is this allowed? Like using desmo
@@mateicaravateanu8192 desmos is built into the exam I believe
Craaaaaaaazy vid bro, spent few hours just writing everything I heard in your vid down. Glad I didnt take the June SAT and decided to take the august one, this video came in time.
Is Desmos allowed in every SAT tests after the August one?! 😭?!?
@@kittymiaowmiaow Ya, there have been no announcements its being removed. I just said what I said as this video is recent and I wouldnt have taken the SAT with the knowledge in this video
@@ok_e3w thanks a lot 💖 I'm in Asia and my teacher just teaches us the regular calculating method without using this "desmos", this is soooo new to me. Thanks for answering, have a nice score bro 🔥
@@kittymiaowmiaow Wish you the best as well, desmos is really a gamechanger for alot of the test when you know how to use it 💯
Low-key this is the best desmos explanation ever
Finished the sat not 20 mins i was able to plug in EVERY SINGLE EQUATION onto desmos and got an awnser ts works 🙏🙏
Okay but the vinyls in the back are SO INCREDIBLY BASED
Watching this 15 minutes before I walk into the testing room, you're a lifesaver!
What’s hour score pls? 😭
been waiting for someone to tell everyone about this!! you literally can put 3/4 of the test into desmos if you just know how to use it and ive been telling all of my friends and they either don't believe me or don't have the patience to learn
Panic watching before Saturday (also Iove the albums on your wall)
real!!
This actually work I recommend 100% dominated desmos there are questions that took me less than 30 sec with desmos
Hell yeah man👍
I’m printing out a screenshot of this video a framing it on my wall. Saved my score completely
never genuinely laughed during an educational video before, my sat is in two days. thank you !
excellent video
im retaking my sat in about a week which is fun
i used desmos last time (and it was a godsend since i had misplaced my graphing calculator then)
i got a 740 FOR THE MATH SECTION but am hoping to get even higher
I got my SAT in two days and I've been prepping forever for it, this video is amazing bruh, kept me entertained while also teaching me useful tuff 🙏
this video took my math from 610 to 760 between 2 practice tests
NGL, this is sooo funny. I used this on my sol a month ago. ITS GODS GIFT
I cannot express my 💫gratitude 💫 about how much this helped me
💫gratitude💫
watching this right before the test, good luck guys 👍👍
I’m watching this an hour before my SAT, thank you
Your an awesome TH-camr! Your videos are super well made with just the right amount of comedy! Keep it up!
I actually slightly disagree with this video, towards the end he says that you shouldn't use the calculator on certain questions, but you really should be using Desmos whenever you can to check your answers, because if you made a mistake when calculating the answer then Desmos would identify the mistake. The only exception to this would be if you were low on time or if the answer was incredibly obvious.
Thank you so much man, I've tried to practice to get my score higher than a 710 (part of that is bc I use desmos), but I always run out of time on the second module. This video kept me entertained and made my brain willing to listen to what you say. I'll practice these extra techniques tonight to do last minute prep for tomorrow morning! Thanks a lot and wish me luck!
Got my sat tomorrow. I’ll tell y’all what I get if I remember
Thank you so much! I watched this video twice, once like three days before my SAT and another time on the car ride to the testing center, and it helped so much! My math score went from 690 to 760 despite not studying 😅. Must admit I got super lucky with the problems though. I was able to plug a good 80% of them into Desmos!
13:26 Was the answer to this b? Is there an easier way to do this other than by putting each number, one-by-one into desmos?
Did you find the right answer? I need helps?
Umm yeah I thought it was 0 because I just took the smallest two intervals 0-20 on A and 0-20 on B and averaged them to get 15-15=0 which is the difference I guess. . .
@@adambacon5314 yea b is the right answer
@@adambacon5314the intervals should be by 10 so you would look at the difference of 10-20 on the first graph and 10-20 on the second graph and see that they are only different by 1
Wow. I knew Desmos was pretty useful, and was surprised when it was on the SAT, but I never knew it could be this useful. I'll definitely have to rewatch this video again the day I take the test.
i’m taking the sat in like 30 mins i wish i saw this and practiced a little bit
6 hours before the august sat is a lifesaver, thanks bro
I've made conway's game of life in desmos for fun, it's surprisingly powerful
Taking it tomorrow I'll let you know how I do! Praying for a 1500+, have not studied at all except for the August one! Lets goooooo time to lock in I'll lyk. Great vid btw bro
thanks to you ima have so much extra time on it and just solve differential equations waiting for the time to be up
calculus isnt even on the sat tho
@@yj-yuanjun but bored and I can’t do nothing so I’m just finna solve differentials
@@terrariariley1643 bros kinda weird for that
Yes, desmos truly is the best! I'm so glad someone is *finally* putting this out there! People really underestimate that little gem. And with how dedicated the desoms team is, I'm sure it will become way more powerful in the future. I really can't wait to finally be able to make an MMORPG in desmos. It's only about 10 years away. Only 10 years. I'll still be pretty young in 10 years, so that's very good news. Especially since I only have to wait ONCE.
this video will singlehandedly get me into my dream college
Im going to use your voice to stop me from overthinking
excellent guide and excellent music taste based on the albums on the wall
Literally found this video an hour before my sat today this now feels so much better, thank youuuuuuu and good luck to alllllll
How did you do?
This is my third time watching this. It's really good. Can't believe I forgot to subscribe.
After a long day of sat questions ,this is how i relax before the sat .
I didn’t realize my PSAT was tomorrow and I’m a junior, meaning I’ve had to.study all night, and I’ve done fine on all reading and writing practice tests, the only thing I’ve been struggling with is math. Who knew that something I never had an interest in was going to be my downfall in one of the most important tests of my life?
same here
thanks bro, i was having a hard time with the SAT, I laughed and learned with this video
5:41 something I always found useful was restricting the domain and range like {0 < x < 4}
why x
@@khachikkhachatryan8704 bc the shaded region ends at x=4. so the shaded region you want is from x=0-4
found this vid the night before the paper thanks chief
thank you saur much, literally the best video on this!
10:54 if you get into this situation and you don't wanna do trial and error, you can:
1. plot the quadratic as f(x)
2. type in f'(x) = m (m is the slope of the line, in this case 3), then record the intersection of the vertical line and the parabola
3. Type the line equation onto desmos, replacing y with the y coordinate of the intersection earlier, x with the x coordinate, and a with x so desmos solves the equation for you. The x that comes out of this is the answer (in this case, it's -8)
omg it worked, can you explain the math behind it please?
At 10:54 you can't actually plug in the possibly answers choices for x into the variable a.
The answer choices happens to include -8 but didn't have to. The final answer is x=6.
methods:
1.If you use trial and error in Desmos you might eventually get to a=-8.
Once you have a=-8 you can solve the system or just look at the point. (X,Y)
The x-coordinate of the point is 6.
x=6
2.or (without trial and error and, also, little use of Desmos)
since it is only a one point intersection we know b^2 -4ac = 0
That's part of the quadratic equation. The square root of 0 is 0.
now you have just x=-b/2a
x=6
(the rules for intersections btw linear and quadratic:
if it was a 2-point intersection then b^2-4ac>0
if one point then b^2-4ac=0
if no point intersect then b^2-4ac
-8 is not the answer, -8 is the value of A, x=6 is the answer
@@aynakhankhojamuratova6266 He's using Calculus. Basically the slope of the tangent line at a point on a graph is equal to the value of the derivative at that point. So the derivative of f(x), which is f'(x), must be 3 (slope of the 2nd equation) at their point of intersection b/c when they intersect once, the line is a tangent line. Wouldn't recommend memorizing this unless you have learned Calculus.
Ur a god send esp because I haven't learned new math since 6th grade
At 10:54 you can't actually plug in the possibly answers choices for x into the variable a.
The answer choices happens to include -8 but didn't have to. The final answer is x=6.
methods:
1.If you use trial and error in Desmos you might eventually get to a=-8.
Once you have a=-8 you can solve the system or just look at the point. (X,Y)
The x-coordinate of the point is 6.
x=6
2.or (without trial and error and, also, little use of Desmos)
since it is only a one point intersection we know b^2 -4ac = 0
That's part of the quadratic equation. The square root of 0 is 0.
now you have just x=-b/2a
x=6
(the rules for intersections btw linear and quadratic:
if it was a 2-point intersection then b^2-4ac>0
if one point then b^2-4ac=0
if no point intersect then b^2-4ac
Oh very good catch. Can't believe I missed that. Your 2nd option is probably the optimal approach, but it's worth mentioning that you need to rewrite the equation as 0 = 2x^{2}-24x+64-a before getting -b/2a.
You could also use calculus to solve it. Because the first equation is a quadratic and the second is linear and it says they only intersect once, the second equation must be a tangent line to the first. You can tell the slope of the second equation is 3. You can then take the derivative of the first equation, set it equal to 3, and solve for x. 4x-21=3 so x=6
honestly, i just used derivatives. 3 seconds without desmos. but then again, that isn't in the skill level required in the sat so its kinda like using a calculator for basic addition and subtraction.
Bro this gave me confidence to do well for December sat thank you life savior
I didn’t expect the SAT to have 8th-grade level math in it 💀
i was surprised taking the psat, it's all pre alg and alg 1, what has the world come to
And I still struggled... dumbass me i guess lmao
Chillll, don't complain bro 😭🙏🏾
same dude
Year 8??? We learn this in year 6
the only fun SAT channel I've find so far :)
That was insane!!! It was funny, engrossing and interesting! Thank you❤ I’ll subscribe ✨
Hopefully this video helps! My last score was 990. 😢 I take my last retake test Dec 7 wish me luck!!
4:48 if your trying to be fast and efficient you would just do 15/1.5 and get 10?
for the problem at 10:56 why are you able to plug in the 4 answers for a even though the question is asking for x?
How can I solve the equation on 1:27 since i get my zeros as decimals not radical expressions on desmos?
plug them into a calculator and press equal then press the convert button, this will give you its decimal form
I'm taking mine Dec 7th. I got an 1150 on a practice test at the end of the summer right before school. I hadn't done anything in few months. I've been reviewing since the beginning of thanks giving break and I'm hoping I can get above a 1400. I'll comment with my score. Its going to be weird looking back at this. me from the past has know Idea weather he will bomb it or not. Hopefully future me wont be sighing!!!
lmk i am also attempting the dec 7th sat today just in a few hours 🥲 with same situation as you
@@ahnet.69 Howd you do. I did well enough that both of the 2nd modules were a lot harder. I did really well with the first math module but not very well with the second one. Think I did pretty well with English overall but then again, so does everyone.
@@everythingballistic8812same story here, the first module was great for math, aced it, but the last few questions, like 6 of em absolutely KICKED my ass on the second module lol. Thinking on a 1300, not sure though😅
@@theamazintaco06 exact same with me. there were about 6 questions in the middle that I had no clue what the answer was. maybe I got lucky and got some of them, but some I just typed a random answer in
“Thank you our king”, we all say in unison ❤
I just like the fact that this video is even funny lol. My test is tomorrow!!
About to enter ninth grade
Don't understand most of it
But still enjoyed it, absolutely hilarious
Bro as a rising senior PLEASE study for your SAT while you can - someone who did not study at all
KEPT ME ENGAGED THE ENTIRE VID! EDITING TOP TIER
3:56, if you cut the back out, you can get a green screen of twice the size about
you're so right
this guy makes sat vidoes actually engaging to watch.... w mans
How does this only have 19k views?? everyone else is missing out by so much
Watched this and got an 800 on the math section, thanks big dawg
this video is actually a life saver! thanks a lot
can somebody explain how did we solve that problem at 12:43 pleaseeee my sat is tomorrow and im feeling so anxious :(
OMG same! I also take my SAT oct 5th. But we win these.
slope intercept form is y= mx + b
personally what I would do is graph the first equation on desmos, find the slope, then rewrite the second equation in the slope form as well.
the slope of the first equation is 1/4
and second equations slope is 2/x (x as a sit in for t)
we just need to make them equal, and 1/4 is equal to 2/8.
8 is where our x (t) used to be, so t = 8.