Conic Sections Question 498
Question: If (2, 0) is the vertex and y-axis the directrix of a parabola, then its focus is
[MNR 1981]
Options:
A) (2, 0)
B) (-2, 0)
C) (4, 0)
D) (-4, 0)
Show Answer
Answer:
Correct Answer: C
Solution:
Vertex $ =(2,0) $
therefore focus is $ (2+2,0)=(4,0) $ .