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Find an equation of the tangent line to the circle x^2+y^2=25 at the point (4,-3)

  • Math - ,

    at (x,y) the slope is -y/x

    So, at (4,-3) the slope is 3/4.

  • Math - ,

    Oops. The slope is -x/y.
    SO, it's 4/3

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