Answer
$f(x) = 2x + 2$
Work Step by Step
$f(x) = 0.5x - 1$
$y = 0.5x - 1$
Switch the x & y, to get an inverse function.
$x = 0.5y - 1$
$x + 1 = 0.5y$
$(2)(x+1) = (2)(0.5y)$
$2x + 2 = y$
$$f(x) = 2x + 2$$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 12 - Section 12.2 - Inverse Functions - Exercise Set - Page 852: 27
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