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Mathematics, 08.04.2020 01:21 ramjand7853

Which set of ordered pairs does not represent a function?
{(-9,0), (-8,8), (-1,-8), (2,8)}
{(-6, -2),(-7,-7),(-5,-2), (-9,-8)}
{(9,6), (-3,-9),(-8, -1), (9,5)}
{(-1,-8), (4,1), (-7,-3), (-3,5)}

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Which set of ordered pairs does not represent a function?
{(-9,0), (-8,8), (-1,-8), (2,8)}
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