AP Calculus AB/BC 2019 Free Response question 1

The title captures it all. In this video, I narrate my thoughts through the AP Calculus AB/BC 2019 Free Response question 1. I highlight some key concepts for approaching the rate of change free response question and show how to use the calculator efficiently to obtain all of the answers.
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[@LinJacob]

The myth, the man, the legend! Thank you so much!

[@alexstrofs308]

This really helped! Thank You!

[@vinteachesmath]

Glad it helped! I hope your AP Calc test prep is going well! Which topic(s) do you find to be most challenging?

[@cozinow]

Thank you so much! you got me Ap Calculus bc a 5.

[@vinteachesmath]

Glad I could help! What classes are you taking this semester?

[@cozinow]

@@vinteachesmath Hi Mr. Vin. I am taking Ap Statistics and Ap US History.

[@akhilkumar845]

Thanks you so much! Just a quick question. Can you please explain again why you changed from E(t)-L(t) to E(x)-L(x) ?

[@vinteachesmath]

We reindex everything because if there is a t in the upper limit of the integral, it is sloppy notation to use the variable t in the integrand.
Thanks for supporting the channel!

[@olegbulgakov7635]

thank you sir!

[@vinteachesmath]

Welcome!

[@LinJacob]

Also do you know a way to access mcq old ap calc ab questions along with answers? I tried to find it online but I can’t get to anything

[@vinteachesmath]

crunchymath.weebly.com/uploads/8/2/4/0/8240213/ap_multiple_choice.pdf
I hope this helps! They are old but good questions!