1Cademy - Example: Finding the Domain and Range of the Relation $$\{(1,1), (2,4), (3,9), (4,16), (5,25)\}$$

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Finding the Domain and Range from a Set of Ordered Pairs

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Example: Finding the Domain and Range of the Relation $\{(1,1), (2,4), (3,9), (4,16), (5,25)\}$

To find the domain and range of the relation $\{(1,1), (2,4), (3,9), (4,16), (5,25)\}$ , we analyze the first and second coordinates of each ordered pair. The domain is the set of all the $x$ -values. Extracting the first coordinate from each pair yields the domain: $\{1, 2, 3, 4, 5\}$ . The range is the set of all the $y$ -values. Extracting the second coordinate from each pair gives the range: $\{1, 4, 9, 16, 25\}$ .

Updated 2026-05-06

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OpenStax Intermediate Algebra

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