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| Math Central | Quandaries & Queries |
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Question from kim, a parent: Find the next 2 terms of the sequence. |
Kim,
In the common notation for a sequence, as in your example 11n + 2.5 the letter n is used to indicate the term number. For example n = 1 indicates the first term, n = 2 indicates the second term and so on. To find the value of the term we substitute the value for n into the expression.
- first term: n = 1: 11n + 2.5 = 11 × 1 + 2.5 = 13.5
- second term: n = 2: 11n + 2.5 = 11 × 2 + 2.5 = 24.5
- third term: n = 3: 11n + 2.5 = 11 × 3 + 2.5 = 35.5
- .....
- tenth term: n = 10: 11n + 2.5 = 11 × 10 + 2.5 = 112.5
- ...
Harley
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