AP Calculus BC FRQ 6

Test Preparation AP Test Preparation
41

<p>Number 6 = Evil. </p>

<p>However, everything else is moderately easy and I believe I got a 5 (but I’m going to seriously study Taylor polynomials more in depth).</p>

42

<p>My teacher spent nearly 2 weeks on Taylor series and polynomials. So thankful for that</p>

43

<p>I honestly found 6 to be quite fun. I’m pretty sure i got 9/9 on it.
Reposted from other thread:</p>

<p>Ever since my BC teacher found out that some of her students for last year’s test skipped the series question, she has been on the warpath. Almost every single one of our AP practice tests had a free response series question, so it’s been drilled into our heads enough that I actually understood the question. </p>

<p>We also had several practice FRQs before the test that looked almost exactly like this.</p>

44

<p>Hypothetically, if one had the the derivative of a function that looked something like (x-1)(x-3)^2(x-5)^3…but that may hypothetically not be exactly right, what would one say the number of extrema would the f(x) have?</p>

45

<p>The -1/2 confused me… I think I got -3/2x^2 for the first term and then just said wow f this it’s wrong and got the min question right, wrote that the proceeding term justifies the error bound, and left c blank. I did b and d with 2 minutes left so I was in a rush haha. I spent 20 minutes or so on part a. Fail -_-</p>

46

<p>well, if you had a situation like that, there would be two relative extrema</p>

47

<p>Rtgrove if i were given that probably i would have hypothetically answered 3</p>

48

<p>I would have put two. However, I asked my friends many of whom said that they would have put 3 if they had this on a test.</p>

49

<p>part c and d killed me. a was easy and b as well</p>

50

<p>I guess we will never know. lol</p>

51

<p>I would’ve put two.Cuz you have to check for sign changes too. Not just critical points.</p>

52

<ol>
<li>the one raised to the even power was probably a vertical tangent, not a relative min/max</li>
</ol>

53

<p>Ugh. Found out I dropped the negative sign on the max/min one so I got the wrong sign for my 2nd derivative. Efffff.</p>

<p>I think I got the rest though. :). #6 was a lot of fun to work for w.e. reason, except that I desperately needed to got the restroom. -__-.</p>

54

<p>its def. 2
only count the odd roots. we spent about 3 weeks on that stuff since calc ab is every day :&lt;/p>

55

<h1>6 sucked but I think I drew correct conclusions from my incorrect data on each question so hopefully I will earn some credit.</h1>