## Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole

# Chapter 2 - Section 2.1 - Functions - Exercises: 40

#### Answer

Net change is -10

#### Work Step by Step

$f(x)=4-5x$ $f(3)=4-5(3) = 4-15 = -11$ $f(5)=4-5(5) = 4-25 = -21$ $f(5)-f(3) = (-21) - (-11) = -10$ net change decreased by 10

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