College Algebra (6th Edition)

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

Chapter 2 - Summary, Review, and Test - Test - Page 327: 17



Work Step by Step

$\frac{f(x+h)-f(x)}{h}$ $\frac{(x+h)^2-(x+h)-4-(x^2-x-4)}{h}$ $\frac{x^2+2xh+h^2-x-h-4-x^2+x+4}{h}$ $\frac{2xh+h^2-h}{h}$ $\frac{h(2x+h-1)}{h}$ =2x+h-1
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