#### Answer

Not a function
Domain: {0, 1, 2}
Range: {-4, -1, 0, 1, 4}

#### Work Step by Step

This is not a function because there is more than one y-value for each x=1 and x=2. To find the domain, we make a set of all possible x-values given by the problem. To find the range, we make a set of all possible y-values given by the problem.