Find a General Term an for the Geometric Sequence $$a _ { 1 } = \frac { 1 } { 5 } , r = 9$$

Multiple Choice

Find a general term an for the geometric sequence.
- $$a _ { 1 } = \frac { 1 } { 5 } , r = 9$$

A) $a _ { n } = \frac { 1 } { 5 } \cdot 9 ^{n - 1}$
B) $a _ { n } = \frac { 1 } { 5 } + \frac { 8 } { 5 } ( n - 1 )$
C) $a _ { n } = \left( \frac { 1 } { 5 } \right) n - 1 + \frac { 8 } { 5 }$
D) $a _ { n } = \frac { 1 } { 5 } + 9 ( n - 1 )$