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4 votes
4 votes
Jean invests $800 in a fund. The investment doubles in value each year. The formula

A = 800(2)” models the total value of the investment, A, in dollars, after n years. What
is the value of her investment after 4 years?

User Dfreeman
by
2.8k points

1 Answer

15 votes
15 votes

Given that the investment is doubled each year as expressed in the following equation:


A=800(2)^n

Where

A is the total value of the investment after a determined number of years.

n represents the number of years

To calculate the final amount after 4 years, you have to replace the formula with n=4 and calculate the final amount:


\begin{gathered} A=800(2)^4 \\ A=800\cdot16 \\ A=12800 \end{gathered}

After 4 years the value of the investment will be $12,800

User Bryan Dunlap
by
3.3k points
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