Answer
$0$
Work Step by Step
By using values from the graph:
$(f\circ f)(-4)=f(f(-4))=f(0)=0$
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter 8 - Summary, Review, and Test - Cumulative Review Exercises (Chapters 1-8) - Page 792: 6
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