College Algebra (11th Edition)

Published by Pearson
ISBN 10: 0321671791
ISBN 13: 978-0-32167-179-0

Chapter 2 - Section 2.3 - Functions - 2.3 Exercises: 59

Answer

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

Work Step by Step

a) When $x=2,$ the corresponding $y-$value in the given diagram is $ 15 .$ Hence, \begin{array}{l}\require{cancel} f(2)=15 .\end{array} b) When $x=-1,$ the corresponding $y-$value in the given diagram is $ 10 .$ Hence, \begin{array}{l}\require{cancel} f(-1)=10 .\end{array}
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