## Elementary Algebra

Published by Cengage Learning

# Chapter 11 - Additional Topics - 11.7 - Relations and Functions - Concept Quiz 11.7: 3

True

#### Work Step by Step

We know that for a function, $f(x)$, $f(a)$ tells us to find the value of $f$ when $x=a$. Thus, for $f(x)=3x+4$, $f(7)$ means that we need to substitute $x=7$ in the function to find the value of $f$ when $x=7$. Therefore, the statement is true.

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