Question

Which of the following represents a function?

A.) (-1, 2), (-2, 1), (-1, -2), (-2, -1)

B.) (3, 4), (-3, 2), (3, 8), (5, 5)

C.) (5, 1), (5, 2), (5, 3), (5, 4)

D.) (2, 3), (4, 3), (-2, -3), (-4, -3)

Answer 1

here option ( D ) is u r ans

because in D. no repeat first element