As y varies directly with x, there is a proportionality constant. As x increases by that certain constant, y also increases. We equate: y = kx where k = proportionality constant. Given the condition, y = 3 when x = 0.2, then we solve for k: 3 = k(0.2) k = 3/0.2 = 15 When x = 1, then y = 15(1) = 15 (ANSWER)