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Focal Distance

The co-ordina...

Question

The co-ordinates of a point on the parabola $y^{2} = 8 x$ whose focal distance is 4 is

A

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B

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C

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D

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Solution

The correct option is B
$a + x = 4 \Rightarrow 2 + x = 4 \Rightarrow x = 2, y = 4 o r - 4$

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