College Algebra, Chapter 4, 4.1, Section 4.1, Problem 52

Determine all local maximum and minimum values of the function whose graph is shown.

"Refer to the graph in the book"

Based from the graph, the local maximum values 2 and 1 occur when $x$ is $-2$ and $2$, respectively. And the local minimum value -1 occurs when $x$ is 0.