Question

(20 POINTS) Determine which set of ordered pairs (x, y) represents y as a function of x.

A.) {(4, -2), (-8, -1), (-8, 4), (-1, -8)}

B.) {(4, -2), (-8, 4), (-1, -2), (-8, -4)}

C.) {(4, -2), (-2, -8), (4, -1)}

D.) {(4, -2), (-2, 4), (-1, -1)}

Answer 1

{(4, -2), (-2, 4), (-1, -1)} represents y as a function of x because each value of x has a unique value of y.