Find the focus and the directrix of the parabola.y = - 
x2 - 
x - 
A. (-5, -3); y = -5
B. (-5, 0); y = 2
C. (-5, 2); y = 0
D. 
; y = 
Answer: B
Mathematics
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Find the directrices of the ellipse.x2 + 4y2 = 4
A. y = ± 
B. y = ± 
C. x = ± 
D. x = ± 
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A. No B. Yes
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