Can someone tell me what type of function this would be?

Buy a US Savings Bond.
Buy at $1000 now. When cashed in 5 years later, the amount will be $1267. You do not receive any interest unless the money remains in the savings bond for 5 years, and after 5 years it will not collect any more interest.

1 Answer
Feb 14, 2018

The question ought to be what is the rate..

Explanation:

But nevertheless the function will be;

#100I=PR#

Where;

#I = "Interest"#

#P = "Principal"#

#R = "Rate"#

And since interest only take effect on the fifth year and not the years before or the years after..

Therefore #T=1#