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

{(–1, –1), (3, 15), (–4, 0)}
{(7, 35), (4, 17), (2, 10)}
{(2, 5), (8, 50), (9, 66)}
{(–2, –18), (2, 14), (0, –2)}