Common Difference or Common Ratio

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

• 6
• -4
• 4
• 5

Find the common ratio: 4, -16, 64, -256, ...

• r = -4
• r = 2
• r = -2
• r = 4

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 term of the sequence 2,4,8,16 are

• 64
• 32
• 108
• 20

The next term of the series 11,8,5,2 are

• -1
• -2
• 1
• 2

What is the common difference in an arithmetic sequence?

• The number that you + or - by.
• The number you x or divide by.
• The first number.
• The last number.

What is the common difference:  
2, 6, 10, 14...

• -4
• 4
• 1/4
• 2

What is the common difference:
-6, -1, 4, 9...

• 5
• -5
• -6
• 1/5

What kind of sequence is the pattern 15, 17, 20, 24, 29, ...?

• Arithmetic
• Geometric
• Neither

What kind of sequence is the pattern 400, 200, 100, 50, 25, ...?

• Arithmetic
• Geometric
• Neither