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 - Page 294: 14

Answer

a. 11, b. -1, c. 11

Work Step by Step

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