Given:
The condition is
.
Here we realize that the coefficient of
.
Along these lines, the parabola opens towards right .
On contrasting this condition and
, we get,
Accordingly, the co-ordinates of the concentration
Since, the given condition includes
, the axis of the parabola is the
.
∴ The condition of directrix,
, then, at that point,
Length of latus rectum