[October SAT] Top 10 MOST IMPORTANT Questions YOU Must Understand

[@azanahmad8561]

For question six you can set up two equations 5r+10b=200 and b=2r set r=x and b=y into desmos and find the intersection of 8,16 use the y value and but it into 10b b=16 hence 10x16=160. Hence she ran 160 miles on the bike. Thanks your method still makes sense but this one can also be quick if you are running out of time.

[@PrepworksEducation]

Great method! I also use this now ever since I learned about it in desmos!!

[@celinemneimne]

I have a question, why do we plug in 16 into the equation again? If we plug in r=8 we get 16, isnt 16 supposed to be the answer?

[@PrepworksEducation]

Hello, the rate is 10 miles/hour for biking. Therefore, after we determined that the "y" value is 16, this # does not represent the total # of biking hours. It represents the # of hours spent. Therefore, to calculate the total, we would multiply # hours spent by the rate (10 miles/hour) to find total mileage.

[@jstarks123]

Question 5….plug in 1 for x and the equation simplifies to y = a + b + c. Because the vertex is a minimum, any input value other than 9 would have to produce a y value greater than -14. So a + b + c must be greater than -14, and -12 is the only value that satisfies this.

[@PrepworksEducation]

Interesting method of solving! Time saving!

[@fortnitesweatkid]

Here's the topics for each of the questions; the paranthesis is the sub topic that was tested on each of the questions. Question 1: Quadratics (Discriminants) Question 2: Circles (Length of Arcs) Question 3: Functions (Lines) Question 4: Rational Equations (combines with regular fractions and quadratics) Question 5: Quadratics (Vertex) Question 6: Word Problems (deals with basic algebra) Question 7: Advanced Math (exponential graphs) Question 8: Quadratics (Vertex) Question 9: Functions (Lines) Question 10: Triangles and Angles

[@fortnitesweatkid]

pls pin lol 👀

[@PrepworksEducation]

@@fortnitesweatkid Add parentheses and sure...

[@Spo_ng]

for question 4, you could just plug in a number for x for the original equation and then see which answer choices give you the exact answer as the original equation. That's what I did and got D

[@PrepworksEducation]

Well done!

[@veethetics]

that method takes more time than this... you can apply the method mentioned in the video even in your head, but you gotta pay attention to the signs(-/+)

[@PrepworksEducation]

Whatever works best for you should be the best option!

[@diego_br2809]

@@veethetics not really! U just need to check the numerator, plug in any number and the numerator will be always 9

[@whatismeaninggg]

This is super useful, thank you

[@PrepworksEducation]

Glad it was helpful!

[@gopibhagat-c9e]

is there any alternative solution for question5, or can we solve it with help of desmos?

[@pythonismylanguage]

I think there is a mistak in the rational expression question. At the end of the soltion, 4x es can be eliminated, leaving us with 4-5 which is -1

[@coverx7577]

i saw that too but im not sure

[@PrepworksEducation]

4 - (-5) = 9 You can also check the answers with desmos (plug in 1 for “x”) to check if you are not sure 👍

[@coverx7577]

@@PrepworksEducation ohhh i see, thanks

[@PrepworksEducation]

No problem!

[@shubhamgamer5213]

Well im not a American or a set student but i found this question very interesting and fun to solve. So thanks for this

[@PrepworksEducation]

No problem! If you found these interesting, I think you will find these harder questions even MORE fun to solve: kzbin.info/www/bejne/paqYqGeuZst9gtU :)

[@shubhamgamer5213]

Ya i was also about to give it a try too​@@PrepworksEducation

[@PrepworksEducation]

Awesome! Let us know what you think!!

[@anshchawla2698]

please do for english also 😭

[@PrepworksEducation]

Hey, we will! Expect the video to be out this week!

[@PrepworksEducation]

kzbin.info/www/bejne/b52okn58Z56HgKs

[@daneiro5368]

great video! but also you can use desmos for many of those to get quicker results and without doing a lot of work. since it’s on the test, we might as well utilize it.

[@PrepworksEducation]

Thank you, and yes indeed! I just think it’s good practice as inevitably a day comes where the problem is not solvable with desmos. But… desmos is king! 👑

[@KabitaPaudel-zq3dv]

Thanks❤

[@PrepworksEducation]

You're welcome 😊

[@tento4756]

Bro please get a pen to draw rather than the mouse

[@PrepworksEducation]

Hang in there, I get my school computer + stylus back in September 🙏😭

[@runup454]

@@PrepworksEducation rather can you also teach us how to use the desmos in the questions

[@PrepworksEducation]

Here's one: kzbin.info/www/bejne/l6KvgJx4i9KDn5Y There are also SAT desmos guides available on KZbin. It is one of the videos we intend to release in the future though!

[@NischalTechGazette]

It's good why he will have to use it man

[@PrepworksEducation]

We admit that styluses are better... most of our creators use styluses

[@user-dq2wo5qh6b]

Thank you

[@PrepworksEducation]

Of course! Hope they helped!

[@shxdowYT]

in question 5 , why does the a value have to be positive ?

[@PrepworksEducation]

Hey! It has to be positive because the parabola of the equation opens UPWARDS. How do you know that the parabola opens upwards? The vertex is stated to be in Quadrant 4. It is also given that it intersects the x-axis at 2 points. This means to satisfy these criteria, it has to open upwards!

[@husseinhoteit4605]

thank u

[@PrepworksEducation]

No problem!

[@umayozkan511]

can we also factor out the a on the vertex form instead of x in question 5?

[@PrepworksEducation]

I don't believe it would work for the the approach I did in the video. You cannot factor out the "a" since "a" is not present in all the terms. The "c" value is encompassed by 81a - 14.

[@ritikapoudel4829]

shouldn't you change signs in question no 4?

[@PrepworksEducation]

What are part of the question are you referring to? Please leave a timestamp so I can check it out!

[@ocean_blvd]

thanks

[@PrepworksEducation]

No problem! Best of luck on your SAT!

[@nme4546]

For the first question, the discriminant is less than 0 for there to be no solutions... or am i messing up somewhere. I solved to where b^2-4ac < 0. Please help!

[@PrepworksEducation]

Hey, what values did you get? The discriminant in this problem will be based off the value of "b". Therefore we set "b" to a value such that it would be negative.

[@nme4546]

@@PrepworksEducation ohh ok thanks

[@PrepworksEducation]

@@nme4546 Of course!

[@SahilRawal-fe7qc]

​@@nme4546well your approach is right infact your approach is better than the KZbinr and value you will get after solving b^2-4ac

[@PrepworksEducation]

That’s the same method I used haha 😄

[@anshchawla2698]

Q10 was on my may sat and I could not do it

[@PrepworksEducation]

Ah, well I hope you understand how to solve it now based on the video solution!

[@anshchawla2698]

@@PrepworksEducation yeah 😭

[@anshchawla2698]

@@PrepworksEducation tysm ♥️

[@PrepworksEducation]

happy to help!

[@anshchawla2698]

@@PrepworksEducation I have a doubt, can I connect over any other platform?