#### Answer

(a) $f(-2) = 3$
(b) $f(0) = 3$
(c) $f(1) = 3$
(d) $f(4) = 3$

#### 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 $(-2, 3)$.
Thus, $f(-2) = 3$.
(b) The graph of the function $y=f(x)$ contains the point $(0, 3)$.
Thus, $f(0) = 3$.
(c) The graph of the function $y=f(x)$ contains the point $(1, 3)$.
Thus, $f(1) = 3$.
(d) The graph of the function $y=f(x)$ contains the point $(4, 3)$.
Thus, $f(4) = 3$.