20 SAT Math Questions You Can Annihilate Using DESMOS // Join me as I show you how to solve 20 SAT questions that you will likely find on your next digital SAT exam!
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!
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 :)
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
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.
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
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
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?
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 :)
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
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
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😁😁😁
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.
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
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
Hi, Why aren't you using the DESMOS keyboard on the screen? I think most of us don't know all the laptop keyboard shortcuts on a laptop by heart. Thanks!
@@UberHummus No, it's not cheating. You are allowed to store formulas. There is nothing in their calculator use policy that says you can't. Using a non-approved calculator like the TI-Inspire, however, would be cheating.
@@cornerstonetestprepandtuto8898ah, I see. So then there is no need to really check the calculators at all except for models which are not allowed to be used. Got it, thanks!
If n=30 then you would not have a slope equal to 7 (remember, parallel lines must have the same slope). If you calculate the slope with the points (0,0) and (4,30) you'd get 30/4 = 7.5.
man THANK YOU, you made this test so much easier for thousands of students
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!!❤
Pls never post a video without a face! it really helps with keep attention and provides a more trusting human feel
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!
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!!
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
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.
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
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!
This video covered most questions on the math SAT and it helped GREATLY now I must master it
for q18, dragging the slider to -7 also gives same mean and median as 5
Yes, there are multiple solutions. Nice catch!
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
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?
Words can’t explain how much you helped me man! Thank you🎉
You're quite welcome!
Good luck, everyone! Report back on how you think you did on the March 9 SAT!!!
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!
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 :)
Omg. Thank you so much for all these tricks. I never knew they existed. Really helped a lot 😊
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.
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
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
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
This is so so helpful thank you!! Could you possibly make more videos about using desmos with harder problems??
Saves a lot time! But sometimes doing manually would be faster
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
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!
UR THE GOAT
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.
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
This is so helpful, thanks man
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
thank u man i have sat comin saturday this helps a lot
Me to 😢
I’m scared to death, tmrr will be my first sat, but your video helped a lot🥹❤️
How much you got buddy
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.
great video Art, keep up the great work
Thanks, will do!
thank you! very helpful kind sir
Hey man great video, really appreciate these tips!
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!
This video was a HUGE help! Thank you so much for taking the time to make it!!🙏
Glad it was helpful!
appreciate your work
Great video. Thanks so much
Yooo thxxx
32:45 i have a question why we put 2p instead of any other number?
Art is the man ❤
This man is amazing
Thanks for the video, but what website is this?
amazing work! Thank you sooo much
Wow, thank you such. So helpful!
Do both math modules have 22 questions? 'Cos I passed prep tests containing 27 for each math module
And 66 in total for english.
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
for 33:42 since it says in^3 I thought we would have to cube root that back into inches?
can you post all the technics of desmos calcultor. I mean full course in desmos calculator
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.
Guys where can i find these type of practice tests?
are these questions in any of the adaptive practice tests college board provides?
Hi, Why aren't you using the DESMOS keyboard on the screen? I think most of us don't know all the laptop keyboard shortcuts on a laptop by heart. Thanks!
tysm!!!
Is desmos is allowed to used during SAT???
Hey! May i know what emulator you are using?
How do i utilize the shift function?
thank you!
You’re allowed to store formulas? So they have to thoroughly check all calculators before beginning the exam?
No they rarely do that, if ever.
@@cornerstonetestprepandtuto8898wow, what a shame. There’s lots of potential cheating, then
@@UberHummus No, it's not cheating. You are allowed to store formulas. There is nothing in their calculator use policy that says you can't. Using a non-approved calculator like the TI-Inspire, however, would be cheating.
@@cornerstonetestprepandtuto8898ah, I see. So then there is no need to really check the calculators at all except for models which are not allowed to be used.
Got it, thanks!
Does anyone know which practice test these are from?
20:07
31:47
35:32
46:22
49:06
🎉
Desmos in the test is like a cheating😢😂
How come question 21 in module 1 is not 30?
Thank you so much for the video taking all this is in for August 2024 exam
If n=30 then you would not have a slope equal to 7 (remember, parallel lines must have the same slope). If you calculate the slope with the points (0,0) and (4,30) you'd get 30/4 = 7.5.
sat is a joke tbh
m.th-cam.com/video/Y2fjEigrn6A/w-d-xo.html&pp=ygUhTW9zdCBkaWZmaWN1bHQgc2F0IG1hdGggcXVlc3Rpb25z
This will humble you