Answer
$f(f(x))=4x-3$
Domain: $\mathbb{R}. $
Work Step by Step
$f(f(x))=2\cdot f(x)-1$
$=2(2x-1)-1$
$=4x-2-1$
$=4x-3$
... defined for all real numbers. $ $
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 12 Sequences and Series - Prerequisite Skills - Page 792: 14
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