2.
Which relationship is a function?
A.
ху
9 -6
9-8
4
2
-32
B. {(-10, 8), (5, 2), (-1, 5), (-1, -9)}
C. {(3, 4), (10, -7), (-7, 1), (3, 10)}
D. {(-6, 3), (4, 4), (-7, 10), (0, 7)}