Question

What is f(5) if f(1) =3.2 and f(x + 1) = 5/2(f(x))

Answer 1

Explanation:

f(x + 1) = (5/2)*f(x)

f(x + 1) = 2.5*f(x), f(1) = 3.2

f(2) = 2.5f(1) = 2.5*3.2 = 8

f(3) = 2.5f(2) = 2.5*8 = 20

f(4) = 2.5f(3) = 2.5*20 = 50

f(5) = 2.5f(4) = 2.5*50 = 125