Question

Which set of ordered pairs does not represent a function?

O {(-6, 9), (-7, 1), (-4,-2), (-4,5)}
O {(-6,-8), (-9, 8), (6, 9), (5,8)}
O {(3,-8), (-4,0), -9,-1), (8,0)}
O {(6,4), (-1,-9), (-9, 1), (-2,-1)}

Answer 1

The top set does not represent a function because -4 corresponds to two y-values.