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: 35

Answer

a. 2, b. 3

Work Step by Step

We want $f(2)$, the y-value of the order pair whose first component is $x=2$. As indicated by the ordered pair, $(2,2)$, for $x=2$, $y=2$. Thus, $f(2)=2$. We want $f(-1)$, the y-value of the order pair whose first component is $x=-1$. As indicated by the ordered pair, $(-1,3)$, for $x=-1$, $y=3$. Thus, $f(-1)=3$.
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