Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 1 - Section 1.7 - Combinations of Functions; Composite Functions - Exercise Set - Page 258: 53


a. $2x+5$ b. $2x+9$ c. $9$ d. $13$

Work Step by Step

Given $f(x)=x+4$ and $g(x)=2x+1$, we have: a. $(f\circ g)(x)=2x+1+4=2x+5$ b. $(g\circ f)(x)=2(x+4)+1=2x+9$ c. $(f\circ g)(2)=2(2)+5=9$ d. $(g\circ f)(2)=2(2)+9=13$
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