11:14 You can also enter the numbers on your TI84 by clicking Stat then click edit. Enter the numbers from the table in L1 (x1) and L2 (y2) then go back to stat and scroll over to calc then scroll down to ExpReg and it should do the trick as well. I only know this because I'm taking a stat class. Thank you for these handy tricks on Desmos!
Man math module 2 was insanely hard, but thanks to your desmos tricks I think i did pretty well on module 2. But these percent questions and like mass questions got me in module 2
thank you soooo much! this video was actually so helpful for me to understand not only how to approach these math problems but also how to use Desmos! also thanks for these little tricks(like shift+6) which I didn’t know before. Thanks a loot again, I can’t tell you how grateful I am for you for providing free lessons to those students that can’t afford tutors. I hope you will make more videos solving math problems with and without Desmos
Thank you so much for the video! Loved the way you approached the problems and your vibe. I liked and subscribed :) Praying for a 1500 this August 24th :)
Thank you sir! I been trying to do math practice but getting distracted very easy, but this make it as if you watching me so I have to focus:) You got my sub!
Hey man before this video i had only limited knowledge on using desmos. But, now, thanks to your video i am more confident of getting 700+ on the maths section. Thank you very much 🎉.
@ thanks! Well so far I’ve went up 50 points on my Princeton review test 530-580 and my blue book tests says I got a 610, when on my sat earlier this year it was 550.
Went into the March 9th SAT without knowing any of these😭😭!! Thank you so much for posting this, sincerely hoping on increasing my math score for the May 4 SAT
15:40 Since we are given the y-intercept of line M and we know the slopes are the same since the two lines are parallel, we can create the equation y=7x for line M. Then simply plug in the x-value coordinate we are given to solve for n. Y=7(4). Just a quicker way if you know the slopes :)
If ur curious abt #22 on module 1 there is an interesting way to do it by hand. U can take derivative of equation and set = to 0 to find x value of minimum, then plug x value in to find y. then plug that back in to find p and ur done. Takes like 1 min to do
or you can just solve for the vertex coordinates using the formula x = b/-2a and plugging x back in to find the y. Then plugging that y in to find P. Since it says the line only intercepts at one point, you know it has to be at the vertex because that is the only point at which a linear function can intercept a parabola once.
41:29 Correct me if I'm wrong, but this answer is incorrect. Notice that the median was 6.5 before you added b to the list, and the mean was 7. When you set b equal to 7, you get mean is 7, but median is also 7, which is not the same as the initial median being 6.5. This just looks like a mistake on whoever wrote the question, not you in the video. I noticed because I was following along, and it didn't make sense. However, this is a great video! This was actually really helpful and taught me some new things about Desmos :D
@ but it's not equal is my point😅😅 It's not just the wording, I did the math myself and saw that it was off, and you did it in the video, but didn't notice that the median actually changed even though the problem says it was equal, does that make sense? I mean you could try it again and see what I mean, I want to make it clear that the median is not equal in the new data set.
@@TheOfficialKingIdea You're not comparing the mean of the original to the mean of the new one with x (or the median of the original to the median of the new one with x). You are comparing the mean of the new set to the median of the new set, and you want them to be equal to each other. Please make sure you follow the wording. You will also notice that there are two other valid solutions besides x=7. If you can find them, then I think you will have properly understood the problem.
@@cornerstonetestprepandtuto8898OHHHHHH OK, IM SO SORRY 😂😂😂 I realized what it meant, it's not a comparison, it's just saying the mean itself will be equal to the median itself, my bad 😂😂😂😂 I just realized, but I had to read it a few times 😂😂😂 Thank you for this video btw, it taught me some things about Desmos that I didn't know about, this is super helpful!
4:57 when solving for y interecept or anything where you have a function and you need to find something in the function, you can just write the function like you did, but then on a separate line write "f(0)" and it will show you the answer which will be the y intercept.
Just a tip, for subscript u do not need to use any keyboard shortcut.. u can just type the number "1" write after y and desmos automatically inputs the subscript for you!
Yes, thank you! I hope to do an updated video soon as I have learned a lot over the past few months myself, and you are correct: typing 1 after the variable immediately gets you the subscript. Good catch!
I found a faster way to solve the question 18 at 39:50.Firstly, we should do everything he did up to this point (plugging values, putting them on mean and median), and just like he did, we should add x to the data set. In this case, we can see that purple and black lines represent mean and median respectively, for each value of x. So we can just hide the green line by clicking on the button on the left and see points where lines purple and black intersect. This means that at those points, our mean and median values will be equal, which we can see by clicking on those intersection points. For this case there will be 2 answers for x which are 7, and 14 where our values for mean and median will be 7 and 8 for those 2 x values correspondingly. I am not saying that the method he used was wrong, but this approach will save you some time and energy i wish it was understandable😁😁😁
@@futdrafter3013 Yea I was using the slider and found -7 as a value of x. So what would be the correct answer for the problem, or would they accept either values of x, or should I put all values. Thank you!
Thank you for making this video... I am entering for the November sat and I have not had any official training but this video helps me to go a long way thank you❤❤
41:38 additionally, if the question is rephrased as "find the maximum value of x so that the same condition still occurs" you can graph both the mean and median onto desmos and there will be 3 intersections at x = -7, x = 7, and x = 14, to which you'll choose 14 obviously
great video! this helped me so, so much, i can’t express my thanks. i have a question, though. for number 18 on the second module, you chose 7 as the number that would give you equal mean and median, but if you choose -7, it gives you the same number of 5. do they both work?
4:30 if you know that x^0 = 1 then you wouldknow that 1x27 = 27 and that didnt take long. as long as you know that inorder to find the y intercept you set x to 0
3:29 No need to zoom in. Separate it into two equations: y = x, y=x/(x+3). The solutions are where the graphs cross - you can click on either one to see the points, which you can also click to get the exact numbers.
This is great, but it would be helpful if we could see the keystrokes of you using the DESMOS keypad provided on the screen instead of the laptop keyboard. Thanks so much!
Thank you so much after watching to your videos, now I'm pretty sure that I will perform good in free live full length test on 10th and 11th August held by Mentomind.
My exam is in 14 days and I'm just finding out bout this. Thanks so much cause now i can use my time more effectively its gonna be really helpful i hope
7:06 Guys, it will be a lot easier (and quicker) if you put the values in the exponential growth formula ie *y=a(1+r)^t* where a is the initial value, r is the rate (in decimals), and t is the time. You'll get the answer straight up
I agree, if you know the formula, it's quicker. However, not everyone is going to remember those formulas or even have studied them before. The purpose of the video is to show how to solve and still get it correct using Desmos.
8:05 you can literally see that when the time is 0 the money is $740. So just look for the answer choice that has 740 as a coefficient, which is just C
10:41 for this problem, can't you just plug in the answer choices, and see which line includes the three points in the table to be more efficient with time?
I have a question: in Q#12 in the second module, the one about the cone height. How did we determine that the radius is 1^2? It's only stated that the base is 2 in but there is nothing given about the radius. Please help me with this one.
For question 21 the question states the lines are PARALLEL so a quick tip for you guys is parallel lines share the same slope so skipping slope formula you can just see that 7 is the slope since Y=mx+b and see that 4,28 would follow the slope of 7 since 4x7 is 28 making N = 28
Good luck, everyone! Report back on how you think you did on the March 9 SAT!!!
11:14 You can also enter the numbers on your TI84 by clicking Stat then click edit. Enter the numbers from the table in L1 (x1) and L2 (y2) then go back to stat and scroll over to calc then scroll down to ExpReg and it should do the trick as well. I only know this because I'm taking a stat class.
Thank you for these handy tricks on Desmos!
man THANK YOU, you made this test so much easier for thousands of students
Man math module 2 was insanely hard, but thanks to your desmos tricks I think i did pretty well on module 2. But these percent questions and like mass questions got me in module 2
Really you put them in practice? I’m taking it in May 🥲
@@alsmend8045 how was exam?
How can i get desmos calculator on my pc for the sat exam..
@@namburobert6923 its already in the bluebook application
@@namburobert6923bro just search it up in the browser 😂
tomorrow I'm gonna be entering to the October SAT and this video really helped me, you're a lifesaver!
Me too, good luck !!
@@inif.4161good luck!!
@@inif.4161 good luck to you as well!
ahhhhh same . it my first attempt and hopefully the last
@@sourxd2686 same! Wishing u the best of luck
tomorrow is my november attempt... started studying today.. this helps
its like he urges everyone to really listen and he makes sure that we get all the info we need. i sincerely thank you so much for this video!!❤
You explain everything so well man and not at the speed of light like other people 😂, this really helped me. Thanks
You bet and much appreciated!!!
@@cornerstonetestprepandtuto8898 of course!
Pls never post a video without a face! it really helps with keep attention and provides a more trusting human feel
thank you soooo much! this video was actually so helpful for me to understand not only how to approach these math problems but also how to use Desmos! also thanks for these little tricks(like shift+6) which I didn’t know before. Thanks a loot again, I can’t tell you how grateful I am for you for providing free lessons to those students that can’t afford tutors. I hope you will make more videos solving math problems with and without Desmos
Thank you so much for the video! Loved the way you approached the problems and your vibe. I liked and subscribed :)
Praying for a 1500 this August 24th :)
same here!
@@ryan8196 good luck!!
How was your test
@@Hajzadabnzj I got exactly a 1500 haha 🔥
@@vortexfitness44 dang bro congrats
You have good energy, this was my favorite SAT video I've watch so far!
Thanks - if anything, the energy reflects my love for teaching desmos to conquer the SAT math!
@@cornerstonetestprepandtuto8898 great job sir you made me equally excited. and I always hated math growing up
Thank you sir! I been trying to do math practice but getting distracted very easy, but this make it as if you watching me so I have to focus:) You got my sub!
This video covered most questions on the math SAT and it helped GREATLY now I must master it
0:49 I am active! I really love desmos. I’m always checking my answers against it. Thanks for your engaging tutorial.
Thanks a ton! I watched a bunch of videos and was about to give up on Desmos, but then I found your video. You explain it really well. Thanks a lot!💜🌸
Hey man before this video i had only limited knowledge on using desmos. But, now, thanks to your video i am more confident of getting 700+ on the maths section. Thank you very much 🎉.
youre an actual gods sent. I have my act on oct 5 and oct 9 to see which I do better and I feel so much better about the math section now tysm
omgg saved me thankyouu so much keep up the good work so grateful I found this video just the day before my test☺☺
Words can’t explain how much you helped me man! Thank you🎉
You're quite welcome!
I very grateful for this video sir.
I am writing my first SAT exams this November and i pray for Good luck 👍
thank you sm! My december sat is soon and ill try to report back my scores after seeing this video. loved this :)
same im curious to hear about your score. Scores come out dec 20 i heard.
@ thanks! Well so far I’ve went up 50 points on my Princeton review test 530-580 and my blue book tests says I got a 610, when on my sat earlier this year it was 550.
just an update I took the test today. #traumatic
@ I went from 1190 to 1340😁
Went into the March 9th SAT without knowing any of these😭😭!! Thank you so much for posting this, sincerely hoping on increasing my math score for the May 4 SAT
results?
@@androodoo13 I had a 630 and now I have a 700
@@pyro307 thats amazing bro good job
@@androodoo13 TY
I'm taking the PSAT tomorrow. Thank you so much for this, it truly helped!
How was it?
15:40 Since we are given the y-intercept of line M and we know the slopes are the same since the two lines are parallel, we can create the equation y=7x for line M. Then simply plug in the x-value coordinate we are given to solve for n. Y=7(4). Just a quicker way if you know the slopes :)
If ur curious abt #22 on module 1 there is an interesting way to do it by hand. U can take derivative of equation and set = to 0 to find x value of minimum, then plug x value in to find y. then plug that back in to find p and ur done. Takes like 1 min to do
or you can just solve for the vertex coordinates using the formula x = b/-2a and plugging x back in to find the y. Then plugging that y in to find P. Since it says the line only intercepts at one point, you know it has to be at the vertex because that is the only point at which a linear function can intercept a parabola once.
41:29 Correct me if I'm wrong, but this answer is incorrect. Notice that the median was 6.5 before you added b to the list, and the mean was 7. When you set b equal to 7, you get mean is 7, but median is also 7, which is not the same as the initial median being 6.5. This just looks like a mistake on whoever wrote the question, not you in the video. I noticed because I was following along, and it didn't make sense.
However, this is a great video!
This was actually really helpful and taught me some new things about Desmos :D
I think the problem is okay as presently worded, but for extra clarity, it could read "...the mean and the median of the NEW data set will be equal."
@ but it's not equal is my point😅😅 It's not just the wording, I did the math myself and saw that it was off, and you did it in the video, but didn't notice that the median actually changed even though the problem says it was equal, does that make sense? I mean you could try it again and see what I mean, I want to make it clear that the median is not equal in the new data set.
@@TheOfficialKingIdea You're not comparing the mean of the original to the mean of the new one with x (or the median of the original to the median of the new one with x). You are comparing the mean of the new set to the median of the new set, and you want them to be equal to each other. Please make sure you follow the wording. You will also notice that there are two other valid solutions besides x=7. If you can find them, then I think you will have properly understood the problem.
@@cornerstonetestprepandtuto8898OHHHHHH OK, IM SO SORRY 😂😂😂 I realized what it meant, it's not a comparison, it's just saying the mean itself will be equal to the median itself, my bad 😂😂😂😂
I just realized, but I had to read it a few times 😂😂😂 Thank you for this video btw, it taught me some things about Desmos that I didn't know about, this is super helpful!
4:57 when solving for y interecept or anything where you have a function and you need to find something in the function, you can just write the function like you did, but then on a separate line write "f(0)" and it will show you the answer which will be the y intercept.
thank you so much! im taking the October sat, its actually tomorrow lol. this will undoubtedly make my job so much faster and easier
yessss i'm taking it tomorrow too and this made me feel so much better
Its today for us, lets do our best and good luck
Just a tip, for subscript u do not need to use any keyboard shortcut.. u can just type the number "1" write after y and desmos automatically inputs the subscript for you!
Yes, thank you! I hope to do an updated video soon as I have learned a lot over the past few months myself, and you are correct: typing 1 after the variable immediately gets you the subscript. Good catch!
I have my SAT tomorrow, which is my first time, and I'm really nervous but this is helping me. Thank you!
I found a faster way to solve the question 18 at 39:50.Firstly, we should do everything he did up to this point (plugging values, putting them on mean and median), and just like he did, we should add x to the data set. In this case, we can see that purple and black lines represent mean and median respectively, for each value of x. So we can just hide the green line by clicking on the button on the left and see points where lines purple and black intersect. This means that at those points, our mean and median values will be equal, which we can see by clicking on those intersection points. For this case there will be 2 answers for x which are 7, and 14 where our values for mean and median will be 7 and 8 for those 2 x values correspondingly. I am not saying that the method he used was wrong, but this approach will save you some time and energy
i wish it was understandable😁😁😁
*i missed another value of x which is -7 where the median and mean will be equal to 5
@@futdrafter3013 Yea I was using the slider and found -7 as a value of x. So what would be the correct answer for the problem, or would they accept either values of x, or should I put all values. Thank you!
Omg. Thank you so much for all these tricks. I never knew they existed. Really helped a lot 😊
Thank you for making this video... I am entering for the November sat and I have not had any official training but this video helps me to go a long way thank you❤❤
Great video, the shortcuts were really helpful!
Thank you so much! I have my SAT tomorrow, and this helps a lot!
Yo same wishing you good luck and a good night get some sleep and lets crush this test
How did it go?
THANK YOU VERY MUCH MY TEST ON OCT 5 THIS HELPED SOOO MUCH
Thank you for saving us before the November SAT.
fr
41:38 additionally, if the question is rephrased as "find the maximum value of x so that the same condition still occurs" you can graph both the mean and median onto desmos and there will be 3 intersections at x = -7, x = 7, and x = 14, to which you'll choose 14 obviously
MASSIVE RESPECT AND FOLLOW. THANK YOU SO SO MUCH 🙏🙏🙏🙏🙏
you dropped this king 👑
Thank you so much for these tips!!
😊
LIFE SAVER, MAY GOD BLESS YOU
great video Art, keep up the great work
Thanks, will do!
great video! this helped me so, so much, i can’t express my thanks. i have a question, though. for number 18 on the second module, you chose 7 as the number that would give you equal mean and median, but if you choose -7, it gives you the same number of 5. do they both work?
Yes. They would both work. The problem asks for one possible value of x. I found one and you found the other. Good job!
Thank you so much for this video. it make the sat questions so easier than i thought before. i hope in august sat i will be able to get my dream score
4:30 if you know that x^0 = 1 then you wouldknow that 1x27 = 27 and that didnt take long. as long as you know that inorder to find the y intercept you set x to 0
the same thing can be done for no. 13
Unc WE NEED YOU BACK. We need more knowledge🙏🙏🙏🙏🙏🙏🙏🙏🙏
Wow- such a great help! Thank you SO much!!
3:29 No need to zoom in. Separate it into two equations: y = x, y=x/(x+3). The solutions are where the graphs cross - you can click on either one to see the points, which you can also click to get the exact numbers.
This is great, but it would be helpful if we could see the keystrokes of you using the DESMOS keypad provided on the screen instead of the laptop keyboard. Thanks so much!
Thank you so much after watching to your videos, now I'm pretty sure that I will perform good in free live full length test on 10th and 11th August held by Mentomind.
My exam is in 14 days and I'm just finding out bout this. Thanks so much cause now i can use my time more effectively its gonna be really helpful i hope
my exam in august too, i needa get 1520 atleast so good luck to you
@@Hellomr.bob17592 what'd you end up hitting?
@@nickaustinmusic exactly 1400, you?
Thank you so much for your videos. Keep it up they are very helpful 👍👍👍👍👍
This is so so helpful thank you!! Could you possibly make more videos about using desmos with harder problems??
Really Helpful thank you so much
for q18, dragging the slider to -7 also gives same mean and median as 5
Yes, there are multiple solutions. Nice catch!
This is so helpful, thanks man
Hey man great video, really appreciate these tips!
you are a blessing
Thank you so much for your hardwork
for 33:42 since it says in^3 I thought we would have to cube root that back into inches?
7:06 Guys, it will be a lot easier (and quicker) if you put the values in the exponential growth formula ie *y=a(1+r)^t* where a is the initial value, r is the rate (in decimals), and t is the time. You'll get the answer straight up
I agree, if you know the formula, it's quicker. However, not everyone is going to remember those formulas or even have studied them before. The purpose of the video is to show how to solve and still get it correct using Desmos.
8:05 you can literally see that when the time is 0 the money is $740. So just look for the answer choice that has 740 as a coefficient, which is just C
Love you man, amazing help!
Kindly make more videos . I am excitedly waiting for your videos
PLEASE upload more videos!! This has been the only one to help me. 🩵🩵
For the question at 7:11, you can just divide 743.70/740 and that will be c because your initial value has to be 740.
You’re a life saver 😢😊
41:43 when b =-7 both the mean and median are 5 which is equal
10:41
for this problem, can't you just plug in the answer choices, and see which line includes the three points in the table to be more efficient with time?
Saves a lot time! But sometimes doing manually would be faster
thank u man i have sat comin saturday this helps a lot
Me to 😢
thank you! very helpful kind sir
Can we use DESMOS in math 1 and 2 or just math 1 ?
both
Wow, thank you such. So helpful!
Great video. Thanks so much
amazing work! Thank you sooo much
32:45 i have a question why we put 2p instead of any other number?
Excellent content
I have a question: in Q#12 in the second module, the one about the cone height. How did we determine that the radius is 1^2? It's only stated that the base is 2 in but there is nothing given about the radius. Please help me with this one.
The height of a cone will bisect the base. The base is 2, so the radius is 1.
@@cornerstonetestprepandtuto8898 So the radius is always half the base. Did I get it right?
Correct @@MotM200
Can we take over own device for sat and use there computer for desmos
This man is amazing
For question 21 the question states the lines are PARALLEL so a quick tip for you guys is parallel lines share the same slope so skipping slope formula you can just see that 7 is the slope since Y=mx+b and see that 4,28 would follow the slope of 7 since 4x7 is 28 making N = 28
hey I really enjoyed and As I you walk through I also found answers, but anyways thanks
How can DESMOS be used for solving a 2 variable equation, such as: (ax+3)(5x^2-bx+4)=20x^3-9x^2-2x+12? Question asks to find the value of ab.
please more videos like this
Art is the man ❤
appreciate your work
I got a 1320 my first SAT. Knowing this, I hope it goes up at least 80 points.
thats rlly good yeah def 1400 gauranteed but I think a lot of 1500+ scorers start out in 1300’s
can you post all the technics of desmos calcultor. I mean full course in desmos calculator
Thanks for the video, but what website is this?
UR THE GOAT
are these questions in any of the adaptive practice tests college board provides?
Thank you so much!
Umm hi for the first (question )one is -7 , I did it by my calculator & even asked ai (bing) 😅😅😅
DESMOS THE FINAL BOSS SLAYER
14:30 no stop and think about it -b/2a
I would recommend typing it into desmos if it asks for the Y value tho bc finding the x and plugging it back in is too much of a burden.
Are these questions taken from practice test?
great video!