If y = 8x - 2, which of the following sets represents possible inputs and outputs of the function, represented as ordered pairs?

1) (0, -2), (1, 6), (2, 14)}
2) {(0, -2), (2, 13), (-5, -40)}
3) {(1, 7), (2, 2), (3, 7)}
4) {(1, 6), (2, 13), (3, 24)}