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7-12.

Boy flying a kite. the length of the string to the kite is 'K'. The horizontal distance from the boy to the kite is x. Assume the altitude of a flying kite remains constant. As the length of rope, k, changes, the kite flies horizontally either toward the person holding the rope or away from the person. If t represent time, are and positive or negative? Describe the way changes. Homework Help ✎