3 years ago

A sequence is defined by the recursive formula f (n + 1) = f(n) – 2. If f(1) = 18, what is f(5)?

Mathematics

2 answers:

yan [13]3 years ago

4 0

Answer:

f(5)=10 so 10 is your answer.

Step-by-step explanation:

I just did it on ed. ;)

masya89 [10]3 years ago

3 0

It will be easier if we wrote some terms to help us predict the nature of the sequence
f(1)=18,f(2)=18-2=16,f(3)=16-2=14,f(4)=14-2=12f(5)=10
so the nth term will be in the form
f(n)=18-2(n-1)

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