Find the vertex, the focus, and the directrix of the parabola.x2 - 8x - 4y + 28 = 0
A. V: 
; F: (4, 7); D: y = 1
B. V: 
; F: (4, 2); D: y = 4
C. V: (- 4, 3); F: (4, 4); D: y = 2
D. V: 
; F: (4, 4), D: y = 
Answer: C
Mathematics
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B. 
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E. 
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