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: 52


a. $3x-15$ b. $3x-5$ c. $-9$ d. $1$

Work Step by Step

Given $f(x)=3x$ and $g(x)=x-5$, we have: a. $(f\circ g)(x)=3(x-5)=3x-15$ b. $(g\circ f)(x)=3x-5$ c. $(f\circ g)(2)=3(2)-15=-9$ d. $(g\circ f)(2)=3(2)-5=1$
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