Arithmetic Sequence Model

Is this an Arithmetic sequence? 5, 4.25, 3.5, 2.75

• Yes
• No

The next two terms of the sequence 4,7,10,13 are

• 16 and 19
• 15 and 19
• 16 and 18
• 15 and 18

The next two terms of the sequence 12,17,22,27 are

• 28 and 33
• 29 and 34
• 27 and 32
• 30 and 35

The next two terms of the sequence 4,7,10,13 are ....

• 16 and 19
• 15 and 19
• 16 and 18
• 15 and 18

Identify the common difference. 
10, 20, 30, 40, ...

• 5
• 10
• 15
• 20

Identify the common difference.
3, 7, 11, 15, ...

• 6
• 5
• 4
• 2

Identify the common difference.
97, 86, 75, 64, ...

• 8
• 11
• -11
• -8

Given the sequence:
 25, 21, 17, 13,...
Write the explicit equation that models the sequence.

• a_n = 4n + 29
• a_n = -4n + 25
• a_n = -4n + 29
• a_n = 4n + 25

Given the sequence:
 25, 21, 17, 13,...
Write the explicit equation that models the sequence.  (Hint:  Simplify your equation.)

• a_n = 4n + 29
• a_n = -4n + 25
• a_n = -4n + 29
• a_n = 4n + 25

Create the explicit formula for the sequence:
2, 8, 14, ...
(Hint:  Write your formula and then simplify it.)

• a_n=2+6n
• a_n=-6+6n
• a_n=6n-4
• a_n=4-6n