Find an equation of the parabola described.Focus at (0, -5); directrix the line y = 5
A. y2 = -5x
B. x2 = 20y
C. x2 = -20y
D. y2 = -20x
Answer: C
Mathematics
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A. ?
B. ?
C. ?
D. ?
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dx = - 
+ C
A. Yes B. No
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A. 
B. 
C. 
D. 
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A. 
B. 
C. 
D. 
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