Question

*** WILL MEDAL ***
A sequence is defined recursively using the equation f(n + 1) = f(n) – 8. If f(1) = 100, what is f(6)?

Answer 1

It looks like you keep subtracting eight:
f(1)= 100
f(2) = f(1)-8 = 100-8 = 92
f(3) = f(2) -8 = 92 -8 = 84
and so on...
the short way is to figure out f(6)= 100- 5*8