Which of the sets of ordered pairs represents a function? (4 points) a = {(−4, 5), (1, −1), (2, −2), (2, 3)} b = {(2, 2), (3, −2), (9, 3), (9, −3)} only a only b both a and b neither a nor b

A function will not have any repeating x valuesit can have repeating y values, just not the x ones

(-4,5),(-1,1),(2,-2),(2,3)
this is not a function because it has 2 sets of points that has x as 2...so it has repeating x values

(2,2),(3,-2),(9,3),(9,-3)
this is not a function because it has 2 sets of points that has an x value of 9...so it also has repeating x values

so both of these are not functionsneither of them

The ratio would be 3:1

2 dozen= 24 so the ratio would be 24:8 but both numbers are divisible by 8