Find the Inverse Function Of $f$ $f ( x ) = x ^ { 9 } - 2$

Multiple Choice

Find the inverse function of $f$ .
$f ( x ) = x ^ { 9 } - 2$

A) $f ^ { - 1 } ( x ) = - \sqrt [ 9 ] { x } - 2$
B) $f ^ { - 1 } ( x ) = \sqrt [ 9 ] { x } - 2$
C) $f ^ { - 1 } ( x ) = - \sqrt [ 9 ] { x - 2 }$
D) $f ^ { - 1 } ( x ) = \sqrt [ 9 ] { x + 2 }$
E) $f ^ { - 1 } ( x ) = \sqrt [ 9 ] { x } + 2$