2023 AP Calculus AB & BC Free Response #3

Walkthrough of the 2023 AP Calculus AB a d BC FRQ #3

[MGPablo]

Everyone online complaining about milk but I’m over here with 9/9 on this frq 😂

[aarondumas]

For part D I kept the constant in the exponent so my value for c was a little different and so was my particular solution, would this be okay?

[Spoopyyy]

Wait the goat frq helper is FROM MY CITY⁉️that’s so cool

[barrydickson]

Part c asks for over/under estimate at M(2)...shouldn't we be using value from part b and not M(0)...won't change the final answer, but thought we should use M(2), not M(0)

[User_]

For d I believe you moved over 40 incorrectly as you end up with all positive numbers when C should have been subtracted from 40

[vanessadeborah]

I didnt finish d but I separated it right, integrated, think I found c 😭😭 but I should get few points for it maybe 2 idk

[ladymisfortune]

For part c, you wrote the second derivative expression as d^2M/dt^2 = 1/4(-dM/dt). But wouldn’t the second derivative just be the value -1/4 since you’re deriving in terms of M and not t? So it would be d^2M/dt^2 = 1/4(-dM/dM) which is just d^2M/dt^2 = 1/4(-1) ?

[isabelladuenas]

What if you made the solution curve go through the point and it looks like that but a little higher

[notdru]

Does it have to go through the point ?