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Mathematics, 09.04.2021 18:10 bighenry2

Which set of ordered pairs does NOT show y as a function of x? O {(1,9), (1, 11), (3,9), (4, 14), (5,7)}
O {(14, 100), (15,80), (16, 110), (17, 100), (18,90)}
o {(0.2, 5.8), (0.6, 3.7), (-1.3, 4.4), (1.0,0.9), (0.2, 8.1)}
O {(24, 2.7), (21, 2.8), (24, 2.7), (27, 2.5), (29, 2.5)}
I understand x shouldn't repeat but all of them do am I missing something?​

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Which set of ordered pairs does NOT show y as a function of x? O {(1,9), (1, 11), (3,9), (4, 14), (...
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