The focus of a parabola is (-4,2). its directrix is x = - 6. what are the equation and the vertex of the parabola?
A. x + 5 = 1/4 (y-2) ^2; vertex: (-5,2)
B. x + 5 = (y-2) ^2; vertex: (-5,2)
C. y + 2 = 1/16 (x+4) ^2; vertex: (-4,-2)
D. y + 2 = 4 (x+4) ^2; vertex: (-4,-2)
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