Question

Medal and Fan A recursive function is shown below:

f(1) = 4 and f(n) = f(n - 1) - 8; n > 1

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

4, -4, -12, -20, -28, ...

4, 4, 12, 20, 28, ...

4, 12, 20, 28, 36, ...

4, -12, -20, -28, -36, ...

Answer 1

let n=2
f(2)=f(1)-8=-4
f(3)=f(2)-8=-12
f(4)=f(3)-8=-20

Answer 2

first one

Answer 3

thank you :)