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: 32

Answer

-10

Work Step by Step

We are given that $f(x)=x^{2}-9$, $g(x)=2x$, and $h(x)=x-3$. We are asked to find the value of $(f+h)(-2)$. We know that $(f+h)(x)=f(x)+h(x)$. Therefore, $(f+h)(-2)=((-2)^{2}-9)+(-2-3)=(4-9)+(-5)=(-5)-5=-5-5=-10$.
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