Answer
$\text{Domain: any real number}
\\\\
\text{Range: }
\{y|y\ge-4\}
$
Work Step by Step
Based on the given graph, the values of $x$ can be any number, while the values of $y$ is any number greater than or equal to $-4$. Hence, the graph has the following characteristics:
\begin{array}{l}\require{cancel}
\text{Domain: any real number}
\\\\
\text{Range: }
\{y|y\ge-4\}
.\end{array}
