If (2, 0) is the vertex and y-axis the directrix of a parabola, then its focus is [MNR 1981]

If (2, 0) is the vertex and y-axis the directrix of a parabola, then i

1.	If (2, 0) is the vertex and y-axis the directrix of a parabola, then its focus is [MNR 1981]
A.	(2, 0)
B.	(?2, 0)
C.	(4, 0)
D.	(?4, 0)
Answer» D. (?4, 0)

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If (2, 0) is the vertex and y-axis the directrix of a parabola, then its focus is [MNR 1981]

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