Compute the Exact Value of the Function for the Given $$f ( x ) = 3 \cdot 25 ^ { x } \text { for } x = - 3 / 2$$

Multiple Choice

Compute the exact value of the function for the given x-value without using a calculator.
- $$f ( x ) = 3 \cdot 25 ^ { x } \text { for } x = - 3 / 2$$

A) 45
B) 375
C) $\frac { 3 } { 125 }$
D) $- \frac { 3 } { 125 }$