Which of the following sets of ordered pairs is not a direct variation? a. (0, 0);
Which of the following sets of ordered pairs is not a direct variation? a. (0, 0); (-2, 4); (3, -6) b.(1, 1); (-2, -2); (3, 3) c.(10, 2); (15, 3); (20, 4) d.(0, 0); (1, 3); (2, 4)