Range of a relation
List the x-values (domain) or the y-values (range) from least to greatest. List a repeated value only once.
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A relation has these ordered pairs: (−1, −7), (4, 6), (−7, 8), (4, 6), (1, −3). List the range (the y-values) from least to greatest, without repeats, like -2, 0, 5.
Answer: -7, -3, 6, 8
A relation has these ordered pairs: (4, −2), (−1, 3), (5, −7), (3, −2), (2, −5). List the range (the y-values) from least to greatest, without repeats, like -2, 0, 5.
Answer: -7, -5, -2, 3
A relation has these ordered pairs: (1, 8), (3, 2), (−7, 5), (3, 2), (8, 5). List the range (the y-values) from least to greatest, without repeats, like -2, 0, 5.
Answer: 2, 5, 8
Tip: List the x-values (domain) or the y-values (range) from least to greatest. List a repeated value only once.
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