Find the focus and directrix of the parabola.y2 = -36x
A. (-9, 0); x = 9
B. (-9, 0); y = 9
C. (9, 0); x = -9
D. (0, -9); y = 9
Answer: A
Mathematics
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A. 
B. - 
C. 
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B. - 
C. 
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