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Course: 5th grade > Unit 13

Lesson 2: Number patterns

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Rules that relate 2 variables

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Which rule describes the relationship between the $x$ ‍- and $y$ ‍-coordinates in the following table?

$x$ ‍	$y$ ‍
$10$ ‍	$15$ ‍
$13$ ‍	$18$ ‍
$16$ ‍	$21$ ‍

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