#### Answer

(a) $f(-2) = 0$
(b) $f(0) = 4$
(c) $f(1) = 2$
(d) $f(4) = 4$

#### Work Step by Step

RECALL:
If $(a, b)$ is on the graph of the function $y=f(x)$, then $f(a) = b$.
(a) The graph of the function $y=f(x)$ contains the point $(-2, 0)$.
Thus, $f(-2) = 0$.
(b) The graph of the function $y=f(x)$ contains the point $(0, 4)$.
Thus, $f(0) = 4$.
(c) The graph of the function $y=f(x)$ contains the point $(1, 2)$.
Thus, $f(1) = 2$.
(d) The graph of the function $y=f(x)$ contains the point $(4, 4)$.
Thus, $f(4) = 4$.