Question

Suppose an investment of $1,700 doubles in value every 10 years. How much is the investment worth after 20 years?

Answer 1

After every ten years you have $3400, after 20 years is $6800

Answer 2

Answer: $6,800

Step-by-step explanation:

Given: The investment of $1,700 doubles in value every 10 years.

Here initial value A= 1700,

Multiplicative rate of change b=2

The exponential function for the given problem will be :-

$y=Ab^x$

$\\\Rightarrow y=1700(2)^t$, where t is the time period of ever 10 years.

After 20 years (t=2) the amount will be = $=1700(2)^2=\ \ 6,800$