# Chapter 2 - Section 2.2 - Graphs of Functions - Exercise Set - Page 122: 23

$0$

#### Work Step by Step

RECALL: $f(a)$ represents the value of the function, $f$, when $x=a$. Thus, $f(-3)$ means that we find the value of the function when $x=-3$. Using the graph, we find that when $x=-3$, $y=0$.

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