Question

A sequence is defined by the recursive function f(n+1)= f(n) -2. If f(1) =10. what is f(3)?

Answer 1

6

Explanation:

f(n+1)=f(n)-2

n=1,f(2)=f(1)-2=10-2=8

n=2,f(3)=f(2)-2=8-2=6