E
Editor
Sep 18, 2022
The equation of the parabola having its focus at the origin and directrix is parallel to y-axis is:
Difficulty: Easy
A:
$x^{2}=-2a(y-\frac{a}{2})$
B:
$x^{2}=-2ax$
C:
$x^{2}=-2ay+\frac{a^{2}}{2}$
D:
$x^{2}=-2a(x-\frac{a}{2})$
ID: 63273db8ca83163ac3a0fe5b