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Hi, I had been progressing well with my understanding of parametrics until these two questions arose. The questions in full are: 1) Tangents to the parabola x^2 = 4ay at the points P(2ap,ap^2)and Q(2aq,aq^2) meet at R. a) Show that the equation of the tangent at P is y - px + ap^2 = 0...

Hi, I am working on a problem where I know a point (-2at,at^2 +4a) lies on an inverted parabola about the y-axis. Normally I would transform x = -2at to t = -x/2a and then sub for t in y = at^2 + 4a to get to the Cartesian form. But this does not work in this instance. I think it has...