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Mathematics, 08.04.2021 16:40 bgcxz

30. Which of the following relations is not a function?
A. {(5, 5), (6, 6), (7, 7), (8, 8)}
B. {(-3, 1), (-4, 1), (-5, 1), (-6, 1)}
C. {(4,-5), (4,7), (4,1),(4, -1)}
D. {(0, 0), (4, 5), (5,0), (3, 4)}

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30. Which of the following relations is not a function?
A. {(5, 5), (6, 6), (7, 7), (8, 8)}
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