Question

Which of the following sets of ordered pairs is a function?

O {(5,6), (-2,3), (10, 1), (-2,-9)}
O {(2,5), (-1,9), (6,3), (-1,-2)]
O {(1,3), (-2, 4), (4,5), (3.-2)]
O {(3,4), (2, 3), (3,-2), (4,1)]

Answer 1

C

Explanation:

in order to be a function, the x value cannot repeat itself. C is the only one where x value doesn't repeat.