Answer:
f(-2) = 2
Explanation:
To find f(-2) on the graph, locate the vertical line at x = -2. Find the point on the graph that intersects that line, and report its y-coordinate. Here, the point (-2, 2) is on the line x=-2, so ...
f(-2) = 2
_____
Additional comment
Traditionally, the horizontal and vertical axes are labeled x and y. On this graph, the axes are not labeled. You are expected to assume the horizontal axis is x, and the vertical axis is y or f(x).