For each function, find (a) (2) and (b) (-1). = {(-1, 3), (4, 7), (0, 6), (2, 2)}

For each function, find (a) ƒ(2) and (b) ƒ(-1).

ƒ = {(-1, 3), (4, 7), (0, 6), (2, 2)}