Arithmetic Sequence

Which of the following is an arithmetic sequence?

• 2, 5, 8, 11, 14, 17, ...

• 2, 4, 8, 16, 32, 64,...

• 5, 10, 20, 40, 80,...

• 3, 15, 75, 375,...

Quick recall:

What do you call the constant number that you add/subtract in an arithmetic sequence?

What is the 7th term of the sequence below

5, 8, 11, 14, 17,...?

What is the 100th term of the sequence generated by the formula

3n + 2?

What are the first 5 terms of the sequence generated by the formula

-5n + 50?

Given the sequence: 2, 6, 10, 14, 18,...

What is missing in the n^th term formula below?

n^th term formula: _n - 2

Given the sequence: 22, 19, 16, 13, 10,...

What is missing in the n^th term formula below?

n^th term formula: _n + 25

Given the sequence: 1.5, 2, 2.5, 3, 3.5,...

What is missing in the n^th term formula below?

n^th term formula: _n + 1

(Put your answer in decimal form.)

A sequence has an n^th term of

4n - 7

Find the first 5 terms.

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Given the sequence: 14, 17, 20, 23, 26,...

What is the n^th term rule?

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