Find the vertex, the focus, and the directrix of the parabola.y = x2 + 10x + 26
A. V: (-5, 1); F 
; D: x = 
B. V: (-5, 1); F 
; D: y = 
C. V: (-5, 1); F (-5, 2); D: y = 0
D. V: (-5, 1); F 
; D: y = 
Answer: D
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