Answer
This is not a solution.
Work Step by Step
We plug in the point to see if it results in a true statement:
$$ 5(20)-8(6)<40 \\ 100-48<40 \\ 52<40 \\ False $$
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 9 - Inequalities and Problem Solving - 9.4 Inequalities in Two Variables - 9.4 Exercise Set - Page 610: 10
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