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: 13

Answer

a. -11, b. 4, c. -8

Work Step by Step

We are given the function $f(x)=-x^{2}+2x^{3}-8$. In order to find the specified values, we can plug the values into the function and solve. a. $f(-1)= -(-1)^{2}+2(-1)^{3}-8=(-1\times1)+(2\times-1)-8=(-1)+(-2)-8=-1-2-8=-11$ b. $f(2)= -(2)^{2}+2(2)^{3}-8=(-1\times4)+(2\times8)-8=(-4)+(16)-8=-4+16-8=4$ c. $f(0)= -(0)^{2}+2(0)^{3}-8=(-1\times0)+(2\times0)-8=(0)+(0)-8=0+0-8=-8$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.