## College Algebra 7th Edition

Published by Brooks Cole

# Chapter 2, Functions - Section 2.1 - Functions - 2.1 Exercises - Page 191: 1

#### Answer

(a) $f(-1)=0$ (b) $f(2)=9$ (c) $f(2)-f(-1)=9$

#### Work Step by Step

If $f(x)=x^{3}+1$, then (a) the value of $f$ at $x=-1$ is ___$f(-1)=(-1)^{3}+1=-1+1=0$___ (b) the value of $f$ at $x=2$ is ___$f(2)=2^{3}+1=9$___ (c) the net change in the value of $f$ between $x=-1$ and $x=2$ is ___$f(2)-f(-1)=9-0=9$___

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