8. Given the set of ordered pairs, choose 5 points that create a relation that is a function.
{(-4,-4), (3, 2), (2,-1),(-3,4),(-2,0), (4,3), (-2,-2), (1,-1), (3,4), (-2,-2), (1,3),
(4,0), (-4,1). (2,4), (3, 3), (2, 2), (0,3), (4,1),(0,0), (4,0), (3,2), (2, 3), (2,2),
(-1,4), (-3.-2), (3,-3) }