Find the focus and directrix of the parabola.x2 = 28y
A. (7, 0); y = 7
B. (0, -7); x = - 7
C. (7, 0); x = 7
D. (0, 7); y = -7
Answer: D
Mathematics
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5
A. 
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A. 
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of -45
A. -25
B. 20
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