Which set of ordered pairs represents a function? {(5, -8), (8,-1), (8,7), (-4,2)}

{(-9,-9), (7, -9), (-7, -7), (9,-8)}

{(4,7), (-7,-4), (6,8), (-7,6)}

{(0,8), (-7,2), (4, -9), (4, -3)}

The second one

Step-by-step explanation:

That's the only set where there is only one output for every input.

not enough information

step-by-step explanation:

we cannot know this, because the other students could have handed out 10 flyers, or they could have handed out 100. one way, the mean would go up, and another way, the mean would go down.

560

hope this : )