Precalculus (10th Edition)

Published by Pearson
ISBN 10: 0-32197-907-9
ISBN 13: 978-0-32197-907-0

Chapter 4 - Polynomial and Rational Functions - 4.5 The Real Zeros of a Polynomial Function - 4.5 Assess Your Understanding: 1

Answer

3

Work Step by Step

$f(x)=2x^2-x$ Substitute $-1$ to $x$ to obtain: $f(-1)=2(-1)^2-(-1)=3$
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