Question

A recursive function is shown below:

f(1) = 2 and f(n) = f(n - 1) - 5; n > 1

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

2, 3, 8, 13, 18, ...

2, 7, 12, 17, 22, ...

2, -3, -8, -13, -18, ...

2, -7, -12, -17, -22, ...

Answer 1

@blahhedup101

Answer 2

f(1) = 2
f(n) = f(n - 1) - 5; n > 1
put n = 2
f(2) = f(1) - 5 = 2 - 5 = -3
put n = 3
....

Answer 3

Just the first two terms is sufficient to answer this problem.
But it is worth trying a few n values for learning purposes.

Answer 4

So what's the answer?

Answer 5

I didn't see this, my bad.

Answer 6

is it 2,3... or 2, -3.....

Answer 7

2, -3, ...

Answer 8

It is C or the third choice.