Domain 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: (0, −4), (−4, 4), (−1, 2), (0, −1), (−6, −4). List the domain (the x-values) from least to greatest, without repeats, like -2, 0, 5.
Answer: -6, -4, -1, 0
A relation has these ordered pairs: (6, 5), (6, −6), (−1, −3), (−5, 1), (−1, 2). List the domain (the x-values) from least to greatest, without repeats, like -2, 0, 5.
Answer: -5, -1, 6
A relation has these ordered pairs: (−1, 5), (2, 6), (0, −5), (−7, −3), (−1, 4). List the domain (the x-values) from least to greatest, without repeats, like -2, 0, 5.
Answer: -7, -1, 0, 2
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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