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Mathematics 20 Online
OpenStudy (anonymous):

A point is moving on the graph of 5x3+4y3 =xy. When the point is at P = 􏰁1, 1􏰂, 99 its y-coordinate is increasing at a speed of 8 units per second. What is the speed of the x-coordinate at that time and in which direction is the x- coordinate moving?

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