FunctionEasy
Question
Which of the following relation is a function ?
Options
A.{(1,4), (2,6), (1,5), (3,9)}
B.{(3,3), (2,1), (1,2), (2,3)}
C.{(1,2), (2,2,), (3,2), (4,2)}
D.{(1,2), (2,2,), (3,2), (4,2)}
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