Determine which of the following relations are functions. Select three that apply. {(3, 0), (4, 1), (5, 2), (4, -1)}
{(8, 1), (8, 2), (8, 3), (8,4)}
{(1, 3), (2, 3), (3, 3), (4, 3)}
{(-3, 7), (1, 4), (2, 9), (5, 0);
O {(-2,5), (-1, 2), (0, 1), (1, 2)}