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

(a)
` ( y - 9 )^(2) = 12 ( x - 9) `
vertex : 
focus : 
directrix:   

(b)
` y^(2) - 18 y = 20 x - 9^(2) ` 

vertex : 
focus : 
directrix"   

(c)
` ( x - 3 )^(2) = 20 ( y - 3 ) ` 

vertex : 
focus : 
directrix"   

(d)
` x^(2) + 24 x = 4 y - 36 ` 

vertex : 
focus : 
directrix"   

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