Which formula gives the nth term of 7, 11, 15, 19, ldots?

  1. 7n+4
  2. 4n+4
  3. 4n+7
  4. 4n+3
Answer

D) 4n+3

The terms go up by 4, so the rule is 4n + c. With n = 1: 4 + c = 7, so c = 3 and the rule is 4n+3. SLO M-09-A-10 · Understanding

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