Question

Suppose an investment of $3,800 doubles in value every decade. the function gives the value of the investment after x decades. how much is the investment worth after 2 decades?
a. $152,000
b. $15,200
c. $76,000
d. $7,600

Answer 1

D. $7,600 3,800 x 2= 7,600

Answer 2

15,200 because it doubles every decade. Just multiply 3,800 by 2, and then multiply the answer by 2.