Find the vertex, focus, and directrix of the parabola with the given equation.y2 - 6y + 12x + 81 = 0
A. vertex: (3, 6)
focus: (3, 3)
directrix: y = 9
B. vertex: (3, 6)
focus: (3, 9)
directrix: y = 3
C. vertex: (-6, 3)
focus: (-9, 3)
directrix: x = -3
D. vertex: (-6, 3)
focus: (-3, 3)
directrix: x = -9
Answer: C
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