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Sequences: Write a formula for a geometric sequence

Write an explicit or recursive formula for the nth term of a geometric sequence, given the value of several of its terms. Based on HS common core standard F-BF.A.2 and TEKS 12D.

  1. Which expression is used to determine the nth term of the geometric sequence 6, 12, 24, 48, …?
  2. Which expression represents the nth term of the geometric sequence 2, 8, 32, 128, …?
  3. What is the explicit formula for the geometric sequence 100, 10, 1, 0.1…, if a1 = 100?
  4. … and 10 more awesome questions! Check them out by clicking “Play”.