Give an Appropriate Answer $$f ( x ) = 3 \sqrt { x } + 8 \text { for } x _ { 0 } = 9$$

Multiple Choice

Give an appropriate answer.
- $$f ( x ) = 3 \sqrt { x } + 8 \text { for } x _ { 0 } = 9$$

A) $\frac { 27 } { 2 }$
B) $\frac { 1 } { 2 }$
C) Does not exist
D) $\frac { 9 } { 2 }$