The only SAT Math DESMOS Guide you'll ever need
ฝัง
- เผยแพร่เมื่อ 4 ต.ค. 2024
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This video is a comprehensive DESMOS guide for the SAT, meaning I cover EVERY single type of problem you'll need DESMOS for. But don't just watch TH-cam videos--actually PRACTICE solving the problems I cover in this video, and take some Bluebook practice tests. This video is just a starting point. Good luck studying.
To try everything Brilliant has to offer for free for a full 30 days, visit brilliant.org/LearnSATMath. You’ll also get 20% off an annual premium subscription.
fr
i know stuff in desmos
WTF man, why did you reveal the desmos secret.
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
@@halpqpq11 EXCUSE ME?????????????????????????????
WHAT ARE YOU TALKING ABOUT
Umm what, no it's not @halpqpq11
@@bhavya.n777 Yeah bro scared me !!!
I never thought the guy from ratatouille would end up teaching math SAT
yeah same
Omg I thought the same !! He is fine tho
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
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?
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 graduated from Auburn in '93, yet here I am at the end of your video. Good job.
Bro, you actually managed to grab my attention span
Fr amazing
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!😄😄
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
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
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?
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
I'm an SAT tutor since 2018... this is an excellent Desmos primer. Two thumbs up.
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
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:)
Why is this lowk the most engaging video i hv ever watched tho ...
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
YOURE SO FUNNY I LOVE YOU (12 hours before my SAT)
why was this lowkey funny and instructive at the same time
Okay but the vinyls in the back are SO INCREDIBLY BASED
16 minutes and ZERO bullshit 🔥 (thank you!)
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 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
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
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.
Panic watching before Saturday (also Iove the albums on your wall)
real!!
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 💯
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 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?
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?
6 hours before the august sat is a lifesaver, thanks bro
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
this is the best sat prep video i have seen yet
I’m printing out a screenshot of this video a framing it on my wall. Saved my score completely
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.
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
Your an awesome TH-camr! Your videos are super well made with just the right amount of comedy! Keep it up!
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
“Thank you our king”, we all say in unison ❤
I love you bro the day before my sat I am blessed by this video
2 hour before the sat and i am here 💀💀💀
How was your score 😊????
found this vid the night before the paper thanks chief
This is some life changing shit right here who in their right mind thought being able to add a table was a good idea bro
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!
So taking the sat in the morning- thank you man. I struggle with the math portion
NGL, this is sooo funny. I used this on my sol a month ago. ITS GODS GIFT
KEPT ME ENGAGED THE ENTIRE VID! EDITING TOP TIER
I didn’t know this until half way through the psat and I was so confused because it just gives you answers
this video brought a tear too my eye; godamn, I did not expect soo much fluency and eliquentce.
excellent guide and excellent music taste based on the albums on the wall
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
this dude just made a peashooter in f*cking desmos
Love your style bro, didn't feel like I was a watching an SAT math video, thanks and keep up the amazing work
im ngl this guy is the goat I dont even need any of this and he kept my attention span
I just realized, I have been doing this since 10th standard IN MY NOTEBOOK. Just taking derivatives and sketching graphs of all sorts of functions because I can't remember a single formula. Need the tangent, no problem I have the curves. Need the normals, no problem I have the parameters. Need solutions, no problem I got the coordinates. Yes, it does take more time to do it using my notebook, but we don't get calculators in exams. Also drawing graphs is just so much fun, taking the first and second derivatives and finding their sign schemes.
Do you have a better or faster way though?
this guy makes sat vidoes actually engaging to watch.... w mans
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 u sir my test is tomorrow 🙏🙏
This is my third time watching this. It's really good. Can't believe I forgot to subscribe.
I went from 550 to 700 on math just from watching this video and taking good notes.
actually insane
I've made conway's game of life in desmos for fun, it's surprisingly powerful
That was insane!!! It was funny, engrossing and interesting! Thank you❤ I’ll subscribe ✨
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
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
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.
THANK YOU SO MUCH
this video will singlehandedly get me into my dream college
YOU JUST SAVED ME THANK YOU 🙏🏻🙏🏻🙏🏻🙏🏻
this video is actually a life saver! thanks a lot
You I didn't know Linguini ditched the rat and learned arithmetic. Based
LOLLLLL
This vid is underrated
Good job
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.
You can use Desmos to solve center and radius of circle by using distance and midpoint function
I wish we had a desmos for english
😂
Thank you for this video like actually I’ll even reply with my score in a few weeks if I pass it’s all you
so like just learn desmos and you’re good to go?😭 i don’t understand anything, coming from a pre med bg I haven’t touched maths since the past 2 years and im thinking to give SAT in oct. Any tips or tricks for maths??
use the question bank and khan academy for the basics
watching this at 10 the night before my SAT no studying... heh...
Right here with u :(
istg this guy is the ong person making fun math vids like thats crazy
You are so goated for this as a person who utterly SUCKS at math
10:53 for problems like these I would put d/dx (top equation) = 3 then plug in the x and y values of the intersection into the bottom equation
Thanks so much for this!
thanks man you saved my life w this one
we don’t use desmos or anything similar in south africa so thank you for this, GENUINELY
Thank you so much for this video men! It really help with mine upcoming SAT
Hell yeah bro I see you with that peashooter on desmos
I love this video this video was so much easier to understand and not boring 😂
And I just rewatched it before going to bed. How did you make such an amazing video
Watching this video knowing damn well I'm never stepping foot in a SAT testing room ever agian
Of course they give Desmos on the SAT the year after I graduate
rlly good vid, kept me engaging throughout frfr
How does this only have 19k views?? everyone else is missing out by so much
thank you for the information about desmos you provided in this video.
this man is going to be the reason i dont die one the math section
i love you. best tutor channel ever
3:56, if you cut the back out, you can get a green screen of twice the size about
you're so right
I love this guy
new sat update: u don't need to know math 🎉
Well, you do need to know a bit…
I already knew the arch wasn’t a parabola, it’s a catenoid, it says it on the info booths there and it makes more sense from a physics perspective