Question

what is the 5th term of the geometric sequence with a1=4 and ratio (multiplier) =8?

Answer 1

Hello,

$a_{1}=4$
$a_{2}=4*8^1$
$a_{3}=4*8^2$

$a_{n}=4*8^{n-1}$

$a_{5}=4*8^4=16384$

Answer 2

a(5) = 4 * 8^ (5 - 1)
a(5) = 4 * 8^4
a(5) = 4 * 4096
a(5) = 16384