Answer
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. $(g\circ f)(2)=2(2)+9=13$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
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
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
