Answer
$-1$
Work Step by Step
From the given graph, we see that $f(2)=0$
From the given graph, we see that $f(-2)=1$
$f(2)-f(-2)=0-1=-1$
Finite Math and Applied Calculus (6th Edition)
by Waner, Stefan; Costenoble, Steven
Published by
Brooks Cole
ISBN 10:
1133607705
ISBN 13:
978-1-13360-770-0
Chapter 1 - Review - Review Exercises - Page 106: 1d
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