Which of the following is a function?
Responses

{(3, 7), (6, 10), (9, 14), (12, 18), (3, 22)}
{(3, 7), (6, 10), (9, 14), (12, 18), (3, 22)}

{(-4, -1), ( -2, 5), (0, 8), (0, 10)}
{(-4, -1), ( -2, 5), (0, 8), (0, 10)}

{(4, 8), ( 4, 9), (4, 10)}
{(4, 8), ( 4, 9), (4, 10)}

{(3, 10), ( -2, 10), (5, 10), (10, 10)}