Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 11 - Section 11.4 - Nonlinear Inequalities in One Variable - Exercise Set - Page 798: 21

Answer

(-infinity, $2)$ U $(11/4$, infinity)

Work Step by Step

$3/(x-2) < 4$ Denominator is zero when $x=2$ $3/(x-2) < 4$ $3*(x-2)/(x-2) < 4*(x-2)$ $3 < 4x-8$ $11 < 4x$ $11/4 < 4x/4$ $11/4 < x$ (-infinity, $2)$ $(2, 11/4)$ $(11/4$, infinity) Let $x=0$, $x=2.5$, $x=4$ $x=0$ $3/(x-2) < 4$ $3/(0-2) < 4$ $3/-2 < 4$ $-3/2 < 4$ (true) $x=2.5$ $3/(x-2) < 4$ $3/(2.5-2) < 4$ $3/.5 <4$ $6 < 4$ (false) $x=4$ $3/(x-2) < 4$ $3/(4-2) < 4$ $3/2 < 4$ (true)
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.