Question

Write a function to describe each investment of $1000:
-stock increasing in value 19% per year
-stock decreasing in value 9% each year
If the time is needed to write the function it is 3 years.
Stock increasing
1000 * 1.19 ^ 3=
Stock decreasing
1000 * 0.91 ^ 3
You can replace 3 by n for number of years in both cases