What Is the General Formula for the Sequence 2, 6, 10, 14?

Learn how to find the general formula for the sequence 2, 6, 10, 14 using the expression 4n - 2, where n is the term position.

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The general formula for the sequence 2, 6, 10, 14 is 4n - 2, where n represents the position of the term in the sequence. For example, when n is 1, the term is 4(1) - 2 = 2; when n is 2, the term is 4(2) - 2 = 6, and so forth.

FAQs & Answers

  1. How do you find the general formula for an arithmetic sequence? To find the general formula for an arithmetic sequence, determine the common difference and use the formula an = a1 + (n - 1)d, where a1 is the first term, d is the difference, and n is the term number.
  2. What does the formula 4n - 2 represent in a sequence? The formula 4n - 2 represents an arithmetic sequence where each term increases by 4 starting from the first term 2, corresponding to term positions n = 1, 2, 3, and so on.
  3. Can all sequences be expressed using a general formula? Not all sequences have a simple general formula, but many arithmetic and geometric sequences do. Some complex sequences may require recursive definitions or advanced formulas.