Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 2 - Graphs and Functions - 2.3 Functions - 2.3 Exercises: 69

Answer

(a) $f(2)=15$ (b) $f(-1)=10$

Work Step by Step

(a) The value of $f(2)$ is the range element paired with the domain element $2$. The domain element $2$ is paired with the range element $15$. Thus, $f(2) = 15$. (b) The value of $f(-1)$ is the range element paired with the domain element $-1$. The domain element $-1$ is paired with the range element $10$. Thus, $f(-1) = 10$.
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