AB is a chord of the parabola y² = 4ax. If its equation is y

Last updated: 7/29/2022

AB is a chord of the parabola y² = 4ax. If its equation is y = mx + c and it subtends a right angle at the vertex of the parabola, then (a) c = 4 am (c) c = 4 am (b) a = 4 mc (d) a + 4 mc=0