Answer
The domain is $-2,-1,0,1$ and $2$.
The range is $4,2$ and $0$.
Work Step by Step
The ordered pairs are $(-2,4), (-1,2), (0,0), (1,2), (2,4)$
Set of all possible input values, which is called the domain, is:
$-2,-1,0,1$ and $2$
Set of all possible output values which is called the range, is:
$4,2$ and $0$.