Find the Function Value $f ( x ) = 2 ^ { x }$

Multiple Choice

Find the function value. If the result is irrational, round your answer to the nearest thousandth.
-Let $f ( x ) = 2 ^ { x }$ . Find $f ( 4.5 )$ .

A) 9
B) $45.254$
C) $22.627$
D) $33.941$