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find the parametric equation of the line that is tangent to the parabola y=x^2 at the point(-2 , 4)

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akash

  1. dy/dx = 2x
    at (-2,4), slope = -4

    equation of tangent:
    y-4 = -4(x+2)
    y = -4x -4

    let x = t
    y = -4t - 4

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    Reiny

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