Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 2 - Section 2.3 - The Algebra of Functions - Exercise Set: 12

Answer

$(f+g)(x)=6x-7$ $(f+g)(5)=23$

Work Step by Step

$(f+g)(x)=f(x)+g(x)$ $=4x+2+2x-9$ $=6x-7$ Plugin $x=5$ into $6x-7.$ $(f+g)(5)=6\times5-7=30-7=23$
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