Write the relation as a set of ordered pairs.
a. ordered pairs: {(-3, -6), (0, 0), (3, 6)}
b. ordered pairs: {(-6, -3), (0, 0), (6,3)}
c. ordered pairs: {(-6,-3), (0, 0), (3, 6)}
d. ordered pairs: {(-3, -6), (0, 0), (6,3)}
