## Precalculus (6th Edition) Blitzer

Not a function The domain is $(-3, 4]$. The range is $[-1, 2]$.
Some vertical lines (such as $x=0$) will pass through the graph on more than one point. Thus, the graph does not represent a function. The x-values are from $-3$ to $4$ (but not including -3 itself as a hole was used to plot the point). Thus, the domain is $(-3, 4]$. The y-values range from $-1$ to $2$. Thus, the range is $[-1, 2]$.