Question

Find the coordinates of the focus, axis of the parabola ,the equation of directrix and the length of the latus rectum for

Medium
Solution
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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

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