AP Precalculus Official Sample Exam FRQ's

[@trophystealer1218]

Hey can you do something similar but for the entire practice test 3 by the college board? My teacher gave me the practice test without an answer key and I am really struggling.

[@ArshanKarimi-hk3tx]

Wait for 2ii can’t you just do a regression and get your a and b values that way? An exponential regression

[@ThinquePrep]

Yup

[@gizmo4192]

Yes. Much faster and reliable. That's how my teacher taught us to do it.

[@almostalwaysmusic]

This was so helpful thank you!

[@joselyn4620]

im cooked

[@theoppositeofmicrosoftoffi2715]

Saving my life out here thank you so much 🙏

[@nirmalkusunuri4240]

For The Second Frq section(ii), cant you just do a + b(r) where a is the intial plants of t and b is the difference between your years. so when t = 2 you have 59 plants. Your finding t = 10 so difference is 10 - 2 = 8. so you can do 59 + (8)x(9.833) which is your ROC and i got 137.64

[@ThinquePrep]

Totally works

[@gizmo4192]

Make sure your decimals are three places or longer! Super important for the exam tomorrow!

[@siyeonsbff]

TYSM 😭😭

[@Tobi-xe2rb]

saved my life, ap explanation sucks

[@vxtalityone8131]

this is so easy wtf 😂

[@ThinquePrep]

Ikr

[@woohbee]

at 23:34 could you apply the product rule and multiply 3 by (2-x)^5 instead?

[@ThinquePrep]

No because they do not have the same signs. You can only multiply logs that have the same signs.

[@hermergur]

Actually super helpful ty!

[@alyssaamato4230]

when i tried putting the equations into my calculator at 3:12 mine kept giving me two straight lines instead of the curve like yours why does it do that?

[@ThinquePrep]

My only thought is that you didn’t use the variable X, but plugged in a number instead? Or it could be your window is scaled wrong.

[@veiledd_]

tysm for this video, i struggle with math and the simple explanations made this really easy to follow 🙏

[@ThinquePrep]

Glad it helped!

[@Quasho.]

This was extremely helpful! At 23:13 why did you put the log10(3) down of the bottom instead of multiplying on on the top? I thought it goes on the bottom because it comes after the minus which means to devide do you're deviding by 5log10(2-x) times log10(3).

[@ThinquePrep]

Anything added goes in the numerator. Anything subtracted goes in the denominator. You could have rewritten the logs so that the log 3 came before the subtracted log. That way it’s easier to see where it goes.

[@Quasho.]

@@ThinquePrep Oh, ok thank you!

[@thecanadian8206]

tysm

[@graydon8417]

How many points do you think it will take to get a 5?

[@ThinquePrep]

The scoring rubric provided says 80% to get a 5. We will see if that stays true.

[@nirmalkusunuri4240]

apparently a raw score of 65 is a 5 for the first time so we have to see how that goes

[@nirmalkusunuri4240]

@@gizmo4192 yea but its good for us cause first time takers are definetly doing bad. College board is still a business so if they get mostly bad scores they will inflate it so its good for the student and them.

[@Fab_Cat]

17:45 is it possible for c to also be positive 3?

[@ThinquePrep]

Yes

[@Fab_Cat]

@@ThinquePrep thank you!

[@bassela8527]

@@ThinquePrep Hello! So can the sin function also be h(x) = 10*sin(0.523(x+3))+200?

[@lauriemcdonald2585]

These questions and the ones on practice exam 3 you asked a student to email you are secure documents and should not be posted here. It is a violation of College Board policy and you should remove it.

[@nate._.5991]

”it is a violation of college board policy and you should remove it” 🤓 they make enough money as it is are we really gonna freak out over one guy going over some exam material 😭

[@lauriemcdonald2585]

@@nate._.5991 has nothing to do with money. It has to do with respecting teachers and students who are doing their best to prep for the exam the right way and need secure materials to do that.

[@lauriemcdonald2585]

It’s actually not about money. It is about respecting copyright, intellectual property, and the work of both students and teachers trying to learn course content who deserve to have valid assessment instruments available.

[@itsikshaa]

@@lauriemcdonald2585 girl that's wild. Everyone out here is trying to learn, it's not that deep. And seriously copyright? Go check out math teacher goat he has another college board practice test on his channel with way more views. It's not that serious, we're all trying to pass or get a 5. We need all the help we can get

[@tallest_wookie1842]

@@lauriemcdonald2585 shut up nobody likes you

[@timguillaume867]

we got this test guys 🦾