The focus of the parabola $y^{2} = 4 y - 4 x$ is

(0, 2)

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(1, 2)

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(2, 0)

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(2, 1)

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Solution

The correct option is A (0, 2)
$(y - 2)^{2} = - 4 x + 4 \Rightarrow (y - 2)^{2} = - 4 (x - 1)$
Vertex is (1,2) and focus = (0, 2)

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