Question

Suppose an investment of 3800 doubles in value ever decade. The function f(x)=3800•2^x gives the value of the investment after x decades. How much is the investment worth after 2 decades?

A. 152000
B.15200
C.76000
D.7600

Answer 1

easy, x=2
3800*2^2=3800*4=15200

B