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Which relation is a function?

{(5, 0), (0, 1), (5, 2), (4,4)}

{(0, 1), (−4, 1), (4, 2), (−4,−1)}

{(1, 2), (2,4), (−1, 2), (0,3)}

{(3, 2), (2,1), (−1, 2), (3,3)}

User Rioki
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The answer to this, is your third option or "C". This is because "C" is the only option where the x values of the coordinate doesn't repeat
User Chizaram Igolo
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