" For the parabola "y^(2)=4ax," the ratio of the subtangent to the abscissa is "

For the parabola y^(2) = 16x , the ratio of the length of the subtangent to the abscissa is

In the parabola y^(2) = 4ax , the tangent at the point P, whose abscissa is equal to the latus ractum meets the axis in T & the normal at P cuts the parabola again in Q. Prove that PT : PQ = 4 : 5.

The length of the subtangent to the parabola y^(2)=16x at the point whose abscissa is 4, is

The length of the subtangent to the parabola y^(2)=16x at the point whose abscissa is 4, is

In the parabola y^(2)=4ax, then tangent at P whose abscissa is equal to the latus rectum meets its axis at T, and normal P cuts the curve again at Q. Show that PT:PQ=4:5

If the ordinate of a point on the parabola y^(2)=4ax is twice the latus rectum, prove that the abscissa of this point is twice the ordinate.