#### Answer

Domain: (-infinity, infinity)
Range: (-infinity, -3]U[3, infinity)

#### Work Step by Step

The graph extends infinitely in both directions and contains all x values, so the domain is -infinity to infinity
The graph extends from y= -3 downward and from y=3 upward, but does not have any y values in between, meaning that the range is from -infinity to -3 and 3 to infinity, -3 and 3 included