Answer:
The domain is (-inf, inf) and the range is (-inf, -1]U4
Explanation:
Domain is determined by the x direction, which is the horizontal axis. The function goes infinitely in both the negative side and the positive side of the x direction. Even at x=-2, because as long as there is a y-value, the domain is continuous.
For the range, it goes down in the negative direction infinitely, but it stops at y=-1, and continues at y=4.