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)
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Let U = {q, r, s, t, u, v, w, x, y, z} A = {q, s, u, w, y} B = {q, s, y, z} C = {v, w, x, y, z} Determine the following. (A' ∪ C) ∩ B'
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