Find an equation of a parabola that satisfies the given conditions.Focus (2, 1), directrix x = -4

A. (x - 1)2 = 12(y + 1)
B. (y - 1)2 = 12(x + 1)
C. (x - 2)2 = 12(y - 1)
D. (y - 1)2 = 12(x - 2)


Answer: B

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