Write an Equation of the Inverse for the One-To-One Function $$g ( x ) = x ^ { 2 } + 4 \text { where } x \geq 0$$

Multiple Choice

Write an equation of the inverse for the one-to-one function $$g ( x ) = x ^ { 2 } + 4 \text { where } x \geq 0$$

A) $g ^ { - 1 } ( x ) = \sqrt { x } - 2$
B) $g ^ { - 1 } ( x ) = \sqrt { x - 4 }$
C) $g ^ { - 1 } ( x ) = g ^ { - 1 } ( x ) = \sqrt { x + 4 }$
D) $g ^ { - 1 } ( x ) = \sqrt { x } + 2$