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: 42

Answer

$f(2)=2 \text{ and } f(-1)=-4$

Work Step by Step

$\bf{\text{Solution Outline:}}$ To find $f(2)$ and $f(1),$ use the given graph to find the value of $y$ when $x=2$ and when $x=-1.$ $\bf{\text{Solution Details:}}$ a) Using the graph, when $x=2,$ the value of $y$ is $ 2 .$ Hence, $ f(2)=2 .$ b) Using the graph, when $x=-1,$ the value of $y$ is $ -4 .$ Hence, $ f(-1)=-4 .$ Hence, $ f(2)=2 \text{ and } f(-1)=-4 .$
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