Find the coordinates of the focus, axis of the parabola ,the equation of directrix and the length of the latus rectum for
Solution: The given equation is
Here the coefficient of is negative.
Hence, the parabola opens downwards
On comparing this equation with , we get
Coordinates of the focus
Axis of the parabola is the -axis i.e
Equation of directrix i.e.
Length of latus rectum