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: 12

Answer

a. 5, b. 71, c. -1

Work Step by Step

We are given the function $f(x)=4x^{4}+2x^{2}-1$. In order to find the specified values, we can plug the values into the function and solve. a. $f(-1)= 4(-1)^{4}+2(-1)^{2}-1=(4\times1)+(2\times1)-1=(4)+(2)-1=4+2-1=5$ b. $f(2)= 4(2)^{4}+2(2)^{2}-1=(4\times16)+(2\times4)-1=(64)+(8)-1=64+8-1=71$ c. $f(0)= 4(0)^{4}+2(0)^{2}-1=(4\times0)+(2\times0)-1=(0)+(0)-1=0+0-1=-1$
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