Q. 53.9( 16 Votes )

In each of the following, find the coordinates of the focus, axis of the parabola, the equation of the directrix and the length of the latus rectum.

y2 = 10x

Answer :

The given equation is y2 = 10x

Here, the coefficient of x is positive.


Hence, the parabola open towards the right.


On comparing this equation with y2 = -4ax, we get,


4a = 10


a =


Thus,


Co-ordinates of the focus = (a,0) =


Since, the given equation involves y2, the axis of the parabola is the x-axis.


Equation of directrix, x =-a, then,


x =


Length of latus rectum = 4a = 10


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