Official calc ab test discussion

Test Preparation AP Mathematics & Computer Science
1

<p>feel free to discuss what you thought of the test and what problems you had and also predictions for what you got and the curve.</p>

2

<p>For the FRQ where it asked for the local and absolute min. Was x=6 the absolute or local?</p>

3

<p>I think it only asked for absolute minimum. x=6 is the relative minimum.</p>

4

<p>for the one where we rotated around x=1 to find the volume. were we supposed to do 1 minus the function in the integral or the function minus 1.</p>

5

<p>That question was most definitely not on the test I was taking.</p>

6

<p>For the FRQ where they asked for the speed, it was decelerating or increasing?</p>

7

<p>It was increasing.</p>

8

<p>^^^^^^^^</p>

<p>I’m pretty sure the speed was decreasing (if we’re talking about the same question). The question stated that the material was being processed at a rate of 100 tons per hour, and the rate of raw material going in at the time given was less than 100, so that means the total amount of tons was decreasing.</p>

<p>And jatt… the answer was pi(integral, from 0 to 2) ((1-f(x))^2-(1-g(x))^2)dx
Hope that helps!</p>

9

<p>The velocity was decreasing, but the speed was increasing.</p>

10

<p>If velocity and acceleration have the same sign at the given time, the particle is speeding up.</p>

11

<p>I made solutions today for the tests that were on Collegeboard today. Enjoy, and sorry for any typos.</p>

<p>AB:
<a href=“Dropbox - Error - Simplify your life”>Dropbox - Error - Simplify your life;

<p>BC:
<a href=“Dropbox - Error - Simplify your life”>https://www.dropbox.com/s/nmo6mju19sqe05j/BC%20Solutions%202013.pdf&lt;/a&gt;&lt;/p&gt;

12

<p>Thank you so much @JamisonSloan! Based on that, I’m feeling okay about my test. Thanks again.</p>