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March 26, 2017

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a point is moving on the graph of xy=30. when the point is at (6,5), its x-coordinate is increasing by 6 units per second. how fast is the y-coordinate changing at the moment

  • college calculus - ,

    xy=constant
    y dx/dt+ x dy/dt=0
    you know x,y, and dx/dt solve for dy/dt

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