Unit 7 Sequences Quiz Review

Find the common difference of the arithmetic sequence 14, 20, 26, ...

3, 5, 7, ... is an arithmetic sequence

• True

• False

• a₅ = 160
• a₅ = 40
• a₅ = 10
• a₅ = 80

Find the first four terms of the sequence given the rule:
a_n = 4(5)^n-1

• 20, 100, 500, 2500
• 5, 20, 80, 320
• 4, 20, 100, 500
• 4, 9, 14, 19

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

3, 9, 27, 81, ...

• 19,683

• 6,561

• 2,187

• 729

• 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.