College Algebra 7th Edition

(a) maximums: $(-2,2)$ and $(2,1)$ minimum: $(0,-1)$ (b) increasing: $(-\infty,-2)$ and $(0,2)$ decreasing: $(-2,0)$ and $(2,\infty)$
(a) We see from the graph that the function has local maximums (peaks) at $(-2,2)$ and $(2,1)$ and a local minimum (trough) at $(0,-1)$. (b) We see from the graph that the function is increasing for $x$ intervals $(-\infty,-2)$ and $(0,2)$ and decreasing for $x$ intervals $(-2,0)$ and $(2,\infty)$.