Ask Question
27 October, 19:37

A sequence is defined by the formula f (n+1) = f (n) - 3. If f (4) = 22, what is f (1) ?

+3
Answers (1)
  1. 27 October, 19:48
    0
    f (1) = 31

    Step-by-step explanation:

    since f (n+1) - f (n) = - 3

    this sequence is arithmetic when the common diff is d = - 3

    the general term is:

    f (n) = f (1) + (n-1) d

    put n = 4

    f (4) = f (1) + (4-1) (-3)

    22 = f (1) - 9

    f (1) = 31
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “A sequence is defined by the formula f (n+1) = f (n) - 3. If f (4) = 22, what is f (1) ? ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers