Answer
function
(a) domain $\{x|x=all\ real\ numbers\}$ and range $\{y|y\le2\}$.
(b) $(0,2),(\pm3,0)$.
(c) y-axis.
Work Step by Step
The graph is a function based on the vertical line test.
(a) We can find its domain $\{x|x=all\ real\ numbers\}$ and range $\{y|y\le2\}$.
(b) The intercept(s) can be found as $(0,2),(\pm3,0)$.
(c) We can see that there is symmetry with respect to the y-axis.
