### Home > APCALC > Chapter 7 > Lesson 7.3.3 > Problem 7-131

7-131.

Locate all relative extrema and points of inflection for .

Candidates for relative maxima and minima occur where and

*.*

Candidates for points of inflection occur where

*and*

*.*

But these are just CANDIDATES.

You have to conduct other tests before identifying each candidate as the location of a maximum, minimum, or POI.

Once you determine the -value of each relative max, relative min, and POI, recall that maxima and minima are defined as

*-values.*

Use the function

*to determine the corresponding*

*-coordinates.*