Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 10 - Section 10.9 - Systems of Inequalities - 10.9 Exercises - Page 764: 6

Answer

$(-2,1), (1,-3), (0,1)$ satisfy the inequality, $(1,3)$ does not satisfy the inequality.

Work Step by Step

Substitute each set of coordinates into the inequality to see whether it can be a solution. 1) $-6+2 \leq2$ $-4\leq2 \rightarrow $ Is a solution. 2) $3+6 \leq2$ $9\leq2 \rightarrow $ Is not a solution. 3) $3-6 \leq2$ $-3\leq2 \rightarrow $ Is a solution. 4) $0+2 \leq2$ $2\leq2 \rightarrow $ Is a solution.
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