# How do you find a6 when a1 = 7, r = 2?

Nov 22, 2015

#### Answer:

Geometric Sequence: ${a}_{n} = {a}_{1} {r}^{n - 1}$

#### Explanation:

${a}_{6} = 7 \times {2}^{\left(6 - 1\right)} = 7 \times 32 = 224$

hope that helped