Algebra: A Combined Approach (4th Edition)

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

Chapter 12 - Section 12.2 - Inverse Functions - Exercise Set: 36

Answer

$f^{-1}$(x)=$\frac{7-4x}{2x}$

Work Step by Step

f(x)=$\frac{7}{2x+4}$ y=$\frac{7}{2x+4}$ x=$\frac{7}{2y+4}$ x(2y+4)=7 2xy+4x=7 2xy=+7-4x y=$\frac{7-4x}{2x}$ $f^{-1}$(x)=$\frac{7-4x}{2x}$
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