Find the vertex, focus, and directrix for the following parabolas.

(a)
` ( y - 1 )^(2) = 8 ( x - 6) `
vertex : 
focus : 
directrix:   

(b)
` y^(2) - 12 y = 8 x - 6^(2) ` 

vertex : 
focus : 
directrix"   

(c)
` ( x - 1 )^(2) = 8 ( y - 2 ) ` 

vertex : 
focus : 
directrix"   

(d)
` x^(2) + 16 x = 4 y - 4 ` 

vertex : 
focus : 
directrix"   

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Box 12: Enter your answer as an equation. Example: y=3x^2+1, 2+x+y=3
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