Answer
$x=y-5$
When output $y=2$,
Input $x=-3$
Work Step by Step
$y=x+5$
$\implies y-5=x+5-5$
$\implies x=y-5$
When output $y=2$,
Input $x=2-5=-3$
Big Ideas Math - Algebra 1, A Common Core Curriculum
by Larson, Ron; Boswell, Laurie
Published by
Big Ideas Learning LLC
ISBN 10:
978-1-60840-838-2
ISBN 13:
978-1-60840-838-2
Chapter 10 - Radical Functions and Equations - 10.4 - Inverse of a Function - Exercises - Page 572: 9
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