1.
Which relationship shows y as a function of x?
A. {(-3, 8), (-8, -1), (5, -7), (-8, -8)
B. {(3,-2), (-3, 7), (-7, 0), (1, 2)}
C. {(0, 3), (9, -8), (0, 8), (-6, -5)}
D. {(1, 0), (1, 5), (-4, 5), (-8, 0)}