#### Answer

$x+y \ge 13$

#### Work Step by Step

The sum of the coordinates is represented by $x+y$.
Since the sum must be 13 or higher, then the inequality whose solutions are the points whose coordinates's sum is at lest 13 is:
$x+y \ge 13$

Published by
Pearson

ISBN 10:
0321726391

ISBN 13:
978-0-32172-639-1

$x+y \ge 13$

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