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Which set of ordered pairs represents a function? a {(1, 8), (8, 1), (1, 5), (5, 1)} {(2, 1), (3, 1), (4, 3), (5,3)} {(5, 1), (3, 8), (3, 7), (7, 1)} {(5, 1), (5, 6), (1,3), (9, 7)}
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2 votes
Which set of ordered pairs represents a function?

a
{(1, 8), (8, 1), (1, 5), (5, 1)}
{(2, 1), (3, 1), (4, 3), (5,3)}
{(5, 1), (3, 8), (3, 7), (7, 1)}
{(5, 1), (5, 6), (1,3), (9, 7)}

User Amorphous
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1 Answer

3 votes
Second option, since there are no x repeats.
User Milo Chen
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