Question

Which set of ordered pairs could represent a function?

o (2, 3), (2, 2), (2, 4), (2, 9), (2,-2)
O (1,5), (2, 6), (1, 6), (4, 5), (1, 4)
O (1, 0), (2, 0), (1, 3), (4,3), (5, 7)
O (5, 1), (7,3), (9,5), (11, 7), (13, 9)

Answer 1

(5, 1), (7,3), (9,5), (11, 7), (13, 9)

Explanation:

Answer 2

(5,1), (7 3), (9, 5), (11, 7), (13, 9)

Explanation:

For every input there is exactly one output.