Select an amount of money that you would like to invest (for example $1000.00). This will be your P0 value.
Let your interest rate be k = 0.5%.
Write out the exponential function using the P0 and k values you have.
Determine the value of your investment after 1, 5, and 10 years.
Now, find the doubling time T for your investment. In other words, at what time would your initial deposit double in value?
Repeat steps 3 through 5 for k = 1%.
Repeat steps 3 through 5 for k = 1.5%.