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