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Determining a Relation from a Mapping

To determine a relation from a mapping diagram, translate the visual arrows into a set of ordered pairs. Create an ordered pair for each arrow by using the item the arrow starts from as the xx-value (from the domain) and the item the arrow points to as the yy-value (from the range). Once the ordered pairs are listed, the domain is the set of all the xx-values, and the range is the set of all the yy-values.

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Updated 2026-05-06

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