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 - Page 133: 32


$(f+g)(x)=x^{2}+3x+2$ $(f+g)(4)=30$

Work Step by Step

$(f+g)(x)=f(x)+g(x)$ $=x^{2}+4x+2-x$ $=x^{2}+3x+2$ Plugin $x=4$ into $x^{2}+3x+2$. $(f+g)(4)=4^{2}+3\times4+2=16+12+2=30$
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