Parametric Question x2 (1 Viewer)

[a1079atw]

Parametric Question x1

1. From a point P on the parabola x² = 2ay, a
tangent is drawn. From the focus S a perpendicular is drawn to meet the tangent at R.
(a) Find the equation of SR.
(b) Find the locus of R.

[ACTUALLY, I JUST FIGURED THIS OUT]2. Show that the locus of the middle points of chords in the parabola x² = 4ay, and which pass through the vertex, is another parabola,
x² = 2ay.


Can anyone please help? My brain is exploding....

Thanks in advance!