Answer
a. 4, b. 1
Work Step by Step
The x-value 2 is paired with the y-value 4, so we know that $f(2)=4$.
The x-value -1 is paired with the y-value 1, so we know that $f(-1)=1$.
Intermediate Algebra (12th Edition)
by Lial, Margaret L.; Hornsby, John; McGinnis, Terry
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 - Page 202: 39
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