Intermediate Algebra (12th Edition)

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

Chapter 2 - Section 2.6 - Function Notation and Linear Functions - 2.6 Exercises: 30

Answer

$-3a-3b+4$

Work Step by Step

We are given that $f(x)=-3x+4$. In order to evaluate the function at $a+b$, we can plug in $a+b$ to the function and evaluate directly. $f(a+b)=-3(a+b)+4=(-3)(a)+(-3)(b)+4=-3a-3b+4$
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