Question

Which order pair could be removed so that the set of ordered pairs is a function (4,-2) (-3,2) (3,4) (1,1)

Answer 1

(-3,2) Is correct. If removed it then will be a function.

Answer 2

(4,-2) (-3,2) (3,4) (1,1)
In reality, it is already a function, because for every x only one corresponding value of y.
We do not see any repeating values of x, so this set is already function. We do not have to remove anything.