Suppose you deposit [math] dollars into a bank with [math] simple interest. The amount in the account after [math] years is given by [math] (in dollars).


1. What is the average rate of change for the first year?
Rate (in dollars per year):

2. What is the average rate of change for the first five years?
Rate (in dollars per year):

3. What is the average rate of change for the first ten years?
Rate (in dollars per year):

4. Does the average rate of change increase or decrease as time from the initial deposit gets longer?