5-6 Practice

What would be the $12th$ term in the sequence below?

2, 6, 18, ...

A sequence can be generated by using  $a_n=7a_{n-1}$  where $a_1=3$  and $n$ is a whole number greater than 1.  What are the first 4 terms in the sequence?

• 3, 10, 17, 24,...

• 3, 21, 147, 1029,...

• 3, 10, 70, 490,...

• 3, 18, 108, 648,...

Which equation could be used to generate the geometric sequence below?

4, 32, 256, 2048

•  $a_n=4a_{n-1}$  

•  $a_n=8a_{n-1}$  

•  $a_n=24a_{n-1}$   

•  $a_n=\frac{1}{8}a_{n-1}$  

• Arithmetic

• Geometric

• Arithmetic

• Geometric

• Arithmetic

• Geometric

• Arithmetic

• Geometric