Use the Formula for the General Term (The Nth Term) $a _ { 1 } = 4 , r = 2$

Multiple Choice

Use the formula for the general term (the nth term) of a geometric sequence to find the indicated term of the sequence
with the given first term, a1, and common ratio, r.
-Find a9 when $a _ { 1 } = 4 , r = 2$

A) 1024
B) 27
C) 2048
D) 1028