## Intermediate Algebra (12th Edition)

$\text{ a function }\\\text{Domain: } [-4,4] \\\text{Range: } [0,2]$
$\bf{\text{Solution Outline:}}$ Use the vertical line test to determine if the given graph is a function. The domain is the set of $x$-values and the range is the set of $y$-values. $\bf{\text{Solution Details:}}$ A vertical line drawn anywhere will intersect the given graph in at most $1$ point. Hence, the given graph is a function. The $x$-values used in the graph are from $-4$ to $4.$ The $y$-values used in the graph are from $0$ to $2.$ Hence, the given set has the following characteristics: \begin{array}{l}\require{cancel} \text{ a function }\\\text{Domain: } [-4,4] \\\text{Range: } [0,2] .\end{array}