Determine the vertex, focus, and directrix of the parabola and sketch its graph.y2 - 6y + 12x = -81
A. vertex: (-6, 3)
focus: (-3, 3)
directrix: x = -9
B. vertex: (3, -6)
focus: (3, -3)
directrix: y = -9
C. vertex: (3, -6)
focus: (3, -9)
directrix: y = -3
D. vertex: (-6, 3)
focus: (-9, 3)
directrix: x = -3
Answer: D
Mathematics
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A. (-?, 2]
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