Practice Exercise 1.3

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A. Find the specified term of each arithmetic sequence.

1.) 2, 5, 8,… the 8th term

2.) 3, 5, 7,… the 21st term

3.) 1.4, 4.5, 7.6,… the 51st term

4.) -11, -7, -3,… the 23rd term

5.) 10, -2, -14,… the 17th term


B. Find the specified term.

1.) In the sequence 2, 6, 10,…, what term has a value of 106?

2.) In the sequence 0.07, 0.12, 0.17,…, what term has a value of 1.6?

3.) In the sequence 7, 4, 1,…, what term has a value of -296?




























Answer Key

A.
1.) a8= 23
2.) a21= 43
3.) a51= 156.4
4.) a23= 77
5.) a17= -282

B.
1.) 27th term
2.) 33rd term
3.) 100th term

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