which set of ordered pairs in the form of (x y) does not represent a function of x
(-1 2), (3,-2), (0,1), (5,2)
(-1,2), (3,2), (-2,2), (0,2)
(-1,2), (3,-2), (0,1), (3,5)
(-1,2), (2,3), (3,-2), (-2,0)