Answer
$f(-1)=5$
Work Step by Step
To find $f(-1)$ in $f(x)$, substitute $-1$ to $x$ to obtain:
$f(x)=2-3x
\\f(-1)=2-3(-1)
\\f(-1)=2-(-3)
\\f(-1)=2+3
\\f(-1)=5$
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 7 - Functions and Graphs - Study Summary - Practice Exercises - Page 493: 1
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