Answer:
{-2, 0, 4}
Explanation:
Domain is defined as all the inputs possible to a function.
On a graph, you may know this as the value of x.
This means the domain is equal to all values of x that produce an output.
The only values of x that have a point on them is x = 4, x = 0, and x = -2, all of which have points on the x-value.