## Precalculus (6th Edition) Blitzer

Function domain is $[-2, 2)$. range is $[0, 3]$.
All vertical lines will pass through the graph at a maximum of one point. Thus, the graph represents a function. The x-values are from $-2$ to $2$ (but not including 2 itself as a hole was used to plot the point). Thus, the domain is $[-2, 2)$. The y-values are from $0$ to $3$. Thus, the range is $[0, 3]$.