Help pls The set of ordered pairs (-1,8), (0, 3), (1, -2), and (2.-7) represent a function.

What is the range of the function?

1 {x: x=-1,0,1,2}
2 {y: y =-7, -2, 3, 8}
3 {x: x = -7, -2,-1,0,1,2,3,8}
4 {y: y =-7, -2,-1,0, 1, 2, 3,8}