2.5 Sequences - Introduction - Arithmetic or Geometric

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

• 8
• 11
• -11
• -8

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

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

What is the common ratio of the geometric sequence below?
5, 25, 125, 625...

• 25
• 20
• 5
• 4

What is the 8th term in the geometric sequence below?

3, 9, 27, 81, ...

• 19,683

• 6,561

• 2,187

• 729

Which sequence is an arithmetic sequence?

• 3, 6, 2, 7, ...

• 3, 6, 12, 24, ...

• 3, 6, 10, 15, ...

• 3, 7, 11, 15, ...

This is an arithmetic sequence. 5, 2, –1, –4, . . .

What is the 7th term (a₇ )?

• -13

• -11

• -18

• -22

What is the common ratio of this geometric sequence?

500, 200, 80, 32, ...

• -5/2

• -2/5

• 2/5

• 5/2

Which sequence is a geometric sequence with a common ratio of 2?

• 5, 3, 1, -1, ...

• 5, 7, 9, 11, ...

• 5, 10, 20, 40, ...

• 5, 15, 45, 135, ...

• Arithmetic

• Geometric

• Neither

• Both

• An arithmetic sequence with a common ratio of 3.

• A geometric sequence with a common difference of 3.

• An arithmetic sequence with a common difference of 3.

• A geometric sequence with a common ratio of 3.