Answer
$0$
Work Step by Step
Substitute $-2$ to $x$ to obtain:
$f(-2)=(-2)^2-4\\
f(-2)=4-4\\
f(-2)=0$
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Chapter 2 - Linear and Quadratic Functions - Section 2.1 Properties of Linear Functions and Linear Models - 2.1 Assess Your Understanding - Page 126: 5
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