Q.

Which relation is not a function?

A. {(2,5), (3,6), (4,7), (5,8)}
B. {(6,-2), (-4,6), (- 2,4), (1,0)}
C. {(-1, 5), (-2,5), (- 3,5), (-4,5)}
D. {(0,-2), (1,0), (-1,- 3), (0,-1)}
Answer» D. {(0,-2), (1,0), (-1,- 3), (0,-1)}
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