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

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

(b)
` y^(2) - 4 y = 12 x - 2^(2) ` 

vertex : 
focus : 
directrix"   

(c)
` ( x - 5 )^(2) = 12 ( y - 2 ) ` 

vertex : 
focus : 
directrix"   

(d)
` x^(2) + 16 x = 4 y - 24 ` 

vertex : 
focus : 
directrix"   

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