Question

Using a Recursive Formula
A sequence is defined by the recursive formula f (n + 1) = f(n) - 2. If f(1) = 18, what is f(5)?

Answer 1

Respuesta:

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

f(2)=f(1)-2=18-2=16

f(3)=f(2)-2=16-2=14

f(4)=f(3)-2=14-2=12

f(5)=f(4)-2=12-2=10

---------------------------------

f(5)=10