Question

A recursive function is shown below:

f(1) = 3 and f(n) = f(n - 1) - 4; n > 1

Which of the following lists the terms in the sequence defined by this recursive function?

3, 1, 5, 9, 13, ...

3, 7, 11, 15, 19, ...

3, -7, -11, -15, -19, ...

3, -1, -5, -9, -13, ...

Answer 1

f(n) = f(n - 1) - 4 says the current term is previous term minus 4.
Which sequence above starts at 3 and each term is 4 less than the previous term?

Answer 2

D?

Answer 3

Yes.

Answer 4

Oh ok thanks i had no clue <3

Answer 5

You are welcome.