Intermediate Algebra (12th Edition)

Published by Pearson
ISBN 10: 0321969359
ISBN 13: 978-0-32196-935-4

Chapter 4 - Section 4.3 - Polynomial Functions, Graphs, and Composition - 4.3 Exercises: 5

Answer

a. 8, b. -10, c. 0

Work Step by Step

We are given the function $f(x)=x^{2}-7x$. In order to find the specified values, we can plug the values into the function and solve. a. $f(-1)=(-1)^{2}-7(-1)=(-1\times-1)-7\times-1=(1)-(-7)=1+7=8$ b. $f(2)=(2)^{2}-7(2)=(2\times2)-7\times2=(4)-14=4-14=-10$ c. $f(0)=(0)^{2}-7(0)=(0\times0)-7\times0=(0)-0=0-0=0$
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