Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 12 - Section 12.1 - The Algebra of Functions - Exercise Set - Page 843: 22


$(f\circ g)(x)=|14x-8|$ $(g\circ f)(x)=14|x|-8$

Work Step by Step

$f(x)=|x|$ $;$ $g(x)=14x-8$ $(f\circ g)(x)$ To find $(f\circ g)(x)$, substitute $x$ by $g(x)$ in $f(x)$ and simplify if possible: $(f\circ g)(x)=f(g(x))=|14x-8|$ $(g\circ f)(x)$ To find $(g\circ f)(x)$, substitute $x$ by $f(x)$ in $g(x)$ and simplify if possible: $(g\circ f)(x)=g(f(x))=14|x|-8$
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