Question

http://www.webassign.net/scalc/4-3-6.gif
What are the x-coordinate(s) of the inflection point(s) of f ? (Select all that apply

Answer 1

2,4,6,8

Answer 2

I did not notice it was f'(x). I thought it was f(x) and so I am deleting my previous answer. Point of inflection is when f''(x) = 0. This occurs when f'(x) has a maximum or a minimum. That happens at x = 1, 3, 5, 7, and 8.