# clculus

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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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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