Here's the question you clicked on:
iamsammybear
You are given the graph of the second derivative function f ''(x) shown below. Which of the x-values of the given points are inflection points of the function f(x)?
I answered D, F and H but it was marked incorrect. I'm not sure what I am doing wrong.
H is not an inflection point because the second derivative does not change sign at that point.
Oh, okay. Thank you!