Evaluating Piecewise Functions from a Graph
On a coordinate plane, a piecewise function has 2 lines. The first line has a closed circle at (0, 3) and then goes down through (negative 4, 1) with an arrow instead of an endpoint. The second line has an open circle at (0, 1) and then goes down through (4, negative 1) with an arrow instead of an endpoint.

Consider the function given by the graph. What are these values?

f(-2)=

f(0)=

f(4)=