### Home > APCALC > Chapter 8 > Lesson 8.3.3 > Problem 8-130

8-130.

**Multiple Choice: **Given * *is concave up for:

no values of

Recall that candidates for points of inflection occur where the second derivative equals zero AND where the second derivative does not exist.

After you identify where and where

*, check the regions before, after and between those candidates: if*

*, then*

*is concave up.*