parabolas

Length of latus rectum = 4a = 4 x 3 = 12. Illustration 5: Find the coordinates of the focus, the axis of the parabola, the equation of directrix and the length of the latus rectum for x 2 = -16y. Solution: The given equation is x 2 = -16y. Here, the coefficient of y is negative. Hence, the parabola opens downwards. surga 77 slot login