In this video I show you how to find the equations of tangents and normals to the Cartesian form of a parabola y2=4ax.

In it I show you how we can use implicit differentiation as an alternative method of finding the gradient of the curve.


  1. Find the equation of the tangents and normals at the point x = 9 on the curve y2 = 16x
Tangent / Normal to a parabola (1) : ExamSolutions - youtube Video