College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 2 - Functions and Graphs - Exercise Set 2.1 - Page 224: 35

Answer

a) f(2)=$\frac{31}{8}$ b) f(-2)=$\frac{33}{8}$ c) f(-x)=$\frac{4x^3+1}{x^3}$

Work Step by Step

a.) f(2)=$\frac{4(2)^3-1}{(2)^3}$ f(2)=$\frac{31}{8}$ b.) f(-2)=$\frac{4(-2)^3-1}{(-2)^3}$ f(-2)=$\frac{-33}{-8}$ f(-2)=$\frac{33}{8}$ c.) f(-x)=$\frac{4(-x)^3-1}{(-x)^3}$ f(-x)=$\frac{-4x^3-1}{-x^3}$ f(-x)=$\frac{4x^3+1}{x^3}$
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