Answer
$$22$$
Work Step by Step
$$f(x)=7-5x$$
To find $f(-3)$, substitute $-3$ for $x$ and evaluate
$$f(-3)=7-5(-3)=7+15=22$$
Calculus with Applications (10th Edition)
by Lial, Margaret L.; Greenwell, Raymond N.; Ritchey, Nathan P.
Published by
Pearson
ISBN 10:
0321749006
ISBN 13:
978-0-32174-900-0
Chapter 1 - Linear Functions - 1.2 Linear Functions and Applications - 1.2 Exercises - Page 23: 3
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