Find the focus and directrix of the parabola with the given equation.y2 = -24x
A. focus: (0, -6)
directrix: y = 6
B. focus: (-6, 0)
directrix: y = 6
C. focus: (6, 0)
directrix: x = -6
D. focus: (-6, 0)
directrix: x = 6
Answer: D
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