Which of the sets of ordered pairs represents a function? (5 points) a = {(3, −5), (4, 6), (−3, 9), (2, 7)} b = {(2, 4), (−1, −7), (5, 6), (4, 3)}

I believe A does
hope it helped

Hello,

Actually, both the of sets are function's. 

I say this because a function is a function with each plot does not include the same number. As you can see,each one of them does not have the same number, if the would,it would be a negative.

Hope this helps