If f(1) = 7 and f(n) = 5f (n − 1) then find the value of f(5).

Question

I need help, fast!!

Answer 1

Given f(1) = 7, find f(0) using f(n) = 5f(n-1). This is a recursive formula so you can solve for each term using the previous term.

Solve for f(2)=5f(1)=35

then f(3)=5f(2)=5(35)=175,

f(4)=5f(3)=5(175)=875,

finally, f(5)=5f(4)=5(875)=4,375.