Q. 234.5( 2 Votes )

Find the

Answer :

Since the focus (0, - 3) lies on the y-axis, the y-axis itself is the axis of the parabola. Hence the equation of the parabola is of the form, either x2 = 4ay or x2 = - 4ay. As the directrix is y = 3, the equation of the parabola is x2 = -4 × 3ay = -12y or x2 = -12y.

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