Cracking The Ap Calculus ab Exam 2018

(Marvins-Underground-K-12) #1
derivative:  .   If  we  set     this    equal   to  zero,   there   is  also    no  solution.

Therefore,  there   are no  maxima, minima, or  points  of  inflection. Note    that    the first   derivative  is

always  positive.   This    means   that    the curve   is  always  increasing. Also    notice  that    the second

derivative   changes     sign    from    positive    to  negative    at x    =   −8.     This    means   that    the     curve   is

concave up  for values  of  x   less    than    x   =   −8  and concave down    for values  of  x   greater than    x   =

−8.

Now, we can draw the curve. It looks like the following:

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