QUICK Which set of ordered pairs represents a function?
O {(8, –5), (1,0), (1, –5), (-5,6)}
O {(9, –4), (5,4), (9, -6), (4, –7)}
O {(7,-8),(-2,-6),(-1, -1), (-5, -1)}
O {(-3, -3), (8,6), (8, 7), (1,8)}

3rd option (7.-8),(-2,-6),(-1,-1),(-5,-1)

Step-by-step explanation:

A function is an input which has only one output (x,y)

1st option has 2 pairs which have 1 as x, so we can cross that one out.

2nd option has 2 pairs that have 9 as x

4th option has 2 pairs which have 8 as x

Which leaves you with the 3rd option as the only correct answer.

step-by-step explanation:

1