Find the Inverse of the Function $$f ( x ) = \sqrt [ 3 ] { \frac { x } { 9 } } - 8$$

Multiple Choice

Find the inverse of the function.
- $$f ( x ) = \sqrt [ 3 ] { \frac { x } { 9 } } - 8$$

A) $\mathrm { f } ^ { - 1 } ( \mathrm { x } ) = 27 ( \mathrm { x } + 8 )$
B) $\mathrm { f } ^ { - 1 } ( \mathrm { x } ) = 9 ( \mathrm { x } + 8 ) ^ { 3 }$
C) $f ^ { - 1 } ( x ) = 9 \left( x ^ { 3 } + 8 \right)$
D) $\mathrm { f } ^ { - 1 } ( \mathrm { x } ) = [ 9 ( \mathrm { x } + 8 ) ] ^ { 3 }$