Intermediate Algebra (12th Edition)

Published by Pearson
ISBN 10: 0321969359
ISBN 13: 978-0-32196-935-4

Chapter 4 - Section 4.3 - Polynomial Functions, Graphs, and Composition - 4.3 Exercises: 67

Answer

1

Work Step by Step

We are asked to find $(f∘f)(4)$. We know that $(f∘f)(x)=f(f(x))$. Therefore, $(f∘f)(4)=f(f(4))$. From the first table, we see that $f(4)=3$. From the first table, we see that $f(3)=1$. Therefore, $f(f(4))=f(3)=1$.
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