3/22 - Arithmetic Sequences 2

Each individual number in a sequence of numbers is called what?

What is the distance from one number to the next in a sequence of numbers that is represented by a (d) in an arithmetic sequence?

The individual numbers in a sequences are called...

What is the common difference?

Which kind of sequence has a common difference?

Which kind of sequence has a common ratio?

Which is one way you can find the common difference in an arithmetic sequence?

How can you tell if a sequence is arithmetic?

How can you tell if a sequence is arithmetic?

How can you tell if a sequence is arithmetic?

Determine if the following sequence is arithmetic or geometric.

-3, -6, -12, -24, ...

Determine if the following sequence is arithmetic or geometric.

1, 7, 13, 19, ...

Determine if the following sequence is arithmetic or geometric.

2, 5, 8, 11, 14, ...

Determine if the following sequence is arithmetic or geometric.

6, 30, 150, 750, ...

What does an Explicit Formula do? Check all that apply.

What does  $a_1$  stand for in the explicit formula? 

 $a_n=a_1+\left(n-1\right)d$  

What does  $a_1$  stand for in the explicit formula? 

 $a_n=a_1+\left(n-1\right)d$  

What does  $a_n$  stand for in the explicit formula? 

 $a_n=a_1+\left(n-1\right)d$  

What does  $a_n$  stand for in the explicit formula? 

 $a_n=a_1+\left(n-1\right)d$  

What does  $d$  stand for in the explicit formula? 

 $a_n=a_1+\left(n-1\right)d$  

What does  $d$  stand for in the explicit formula? 

 $a_n=a_1+\left(n-1\right)d$