The directrix of the parabola y2 = 16x is
x = - 4
y = - 4
x = 4
y = 4
The equation of directrix of parabola y2 = 12 x is
3
-3
4
-4
The distance between the foci of an ellipse is 16 and eccentricity is 1/2.The length of the major axis of ellipse is
8
64
16
32
The distance from the centre of the ellipse to one of the foci and one of the vertices of the ellipse is called ____________.
Eccentricity
Ellipse
Focal length
None of these
The length of latus rectum of parabola y2 = 12x is
12
1
The co-ordinates of the focus of the parabola x2 - 6y is.
(0 , 0)
(3, 0)
(0 , 3/2)
(0 , 5)
The focal distance of a point on a parabola y2 = 12x is 4.The abscissa of this point is
5
If distance between the foci of an ellipse is equal to its minor axis, then eccentricity of the ellipse is
1/√2
1/√3
1/√4
1/√6
The vertex of the parabola (y - 2)2 = 16 (x - 1) is
(2 , 1)
(1 , -2)
(-1, 2)
(1 , 2)
The length of latus rectum of the parabola x2 = - 16y is
- 16
- 4
