Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

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: 1

Answer

$f(-1)=5$

Work Step by Step

To find $f(-1)$ in $f(x)$, substitute $-1$ to $x$ to obtain: $f(x)=2-3x \\f(-1)=2-3(-1) \\f(-1)=2-(-3) \\f(-1)=2+3 \\f(-1)=5$
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