Which formula gives the nth term of 2, 8, 14, 20, ldots?

  1. 2n+6
  2. 6n-4
  3. 6n+2
  4. 6n-3
Answer

B) 6n-4

The terms go up by 6, so the rule is 6n + c. With n = 1: 6 + c = 2, so c = -4 and the rule is 6n-4. SLO M-09-A-10 · Understanding

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