Co-ordinate of the focus of the parabola $x^{2} - 4 x - 8 y - 4 = 0$ are

0, 2

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2, 1

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(- 3, \frac{- 71}{10})

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2, - 1

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Solution

The correct option is B $2, 1$
$(x - 2)^{2} = 8 (y + 1) F o c u s x - 2 = 0, y + 1 = 2 \Rightarrow x = 2, y = 1 F o c u s (2, 1)$

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