Write the relation as a set of ordered pairs.

a ordered pairs: {(-1,-2), (0, 0), (1, 2)}

b. ordered pairs: {(2,-1), (0, 0), (2, 1)}

c. ordered pairs: {(1, 2). (0, 0), (2, 1)}

d. ordered pairs: {(2,-1), (0, 0), (1, 2)}​