# Chapter 1 - Section 1.7 - Combinations of Functions; Composite Functions - Concept and Vocabulary Check - Page 257: 11

$f$; $g(x)$

#### Work Step by Step

RECALL: The composition function $f \circ g$ is defined as: $(f \circ g)(x) = f(g(x))$ This means that all $x's$ in the function $f$ have to be replaced with $g(x)$ Thus, the missing expressions in the given statement (in order) are: $f$; $g(x)$

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