PLS HELP ASAP
Determine which of the following are functions. Select all that apply.

A 2-column table with 5 rows. Column 1 is labeled x with entries negative 6, negative 2, 2, 6, 10. Column 2 is labeled y with entries 17, 13, 9, 5, 1.
{(-4, 2), (-2, 1), (-1, 3)
(-1, 4), (0, 5), (2, 5)}
A 2-column table with 5 rows. Column 1 is labeled x with entries negative 3, 0, 0, 3, 4. Column 2 is labeled y with entries 4, 2, 4, 8, 7.
y = -4x² + 45x + 9