Arithmetic Sequences HW

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

• Yes
• No

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

• 5
• 10
• 15
• 20

Is the sequence arithmetic: 78, 785, 7855, 78555, ...

• Yes
• No

Is the sequence arithmetic: 37, 31, 25, 19, ...

• Yes
• No

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

• 5
• 10
• 15
• 20

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 common difference followed by the sequence 3,6,9,12 is...

• d = 3
• d = 4
• d = -4
• d = 6

The next two terms of the sequence 8,4,2,1, 1/2 are

• 1/3 and 1/4
• 1/4 and 1/8
• 1/8 and 1/6
• 1/5 and 1/7

The pattern followed by the sequence 3,6,9,12 is...

• +3
• +4
• -4
• +6

What is the next term:
6, 12, 18, 24...

• 30
• 32
• 34
• 6