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OpenStudy (anonymous):
f(n + 1) = f(n) – 3. If f(4) = 22, what is f(1)?
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OpenStudy (anonymous):
f(n + 1) is the term after f(n). You're subtracting 3 to get to the next term. So work backwards and add 3 to get the previous term. f(4) = 22 f(3) = 22 + 3 = 25 f(2) = 25 + 3 and so on
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