Based on the Graph, Find the Range of Y = $f(x)=\left\{\begin{array}{ll}-\frac{1}{2} x & \text { if } x \neq 0 \\-7 & \text { if } x=0\end{array}\right.$

Multiple Choice

Based on the graph, find the range of y = f(x) .
- $f(x) =\left\{\begin{array}{ll}-\frac{1}{2} x & \text { if } x \neq 0 \\-7 & \text { if } x=0\end{array}\right.$

A) $( - \infty , 0 )$ or $\{ 0 \}$ or $( 0 , \infty )$
B) $( - \infty , \infty )$
C) $( - \infty , 0 )$ or $( 0 , \infty )$
D) $( - 10,10 )$