Answer
Only $(2,3)$ is a solution.
Work Step by Step
We are given: $21x-10y \gt 4$
Plug in $(2,3)$:
$21(2)-10(3) \gt 4$
$12 \gt 4\rightarrow$ true
Plug in $(-1,0)$:
$21(-1)-10(0) \gt 4$
$-21\gt 4\rightarrow$ false
Only $(2,3)$ is a solution.
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 3 Linear Systems and Matrices - 3.5 Perform Basic Matrix Operations - 3.5 Exercises - Mixed Review - Page 193: 48
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