Answer
a) Domain: All real numbers, except $x= -2$ and $x=5$
b) $f(0) = 3.5$.
c) $f(x)=6$ when $x= -1.5$ and when $x= 4$.
Work Step by Step
a) The function in the plot is undefined for $x=-2$ and $x= 5$. Hence, the domain is:
\begin{equation}
\begin{aligned}
\textbf{Domain:}\text{ All real numbers, exccpt}&\\
x= -2\quad \text{and}\quad x= 5
\end{aligned}
\end{equation} b) We see that $f(0) = 3.5$.
c) The graph shows that $f(x)=6$ when $x= -1.5$ and when $x= 4$.
