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

(a)

$( y - 6 )^{2} = 8 ( x - 2)$

vertex : ( , )

focus : ( , )

directrix $x$ =

(b)

$y^{2} - 4 y = 16 x - 2^{2}$

vertex : ( , )

focus : ( , )

directrix $x$ =

(c)

$( x - 9 )^{2} = 16 ( y - 2 )$

vertex : ( , )

focus : ( , )

directrix $y$ =

(d)

$x^{2} + 16 x = 4 y - 24$

vertex : ( , )

focus : ( , )

directrix $y$ =