Is the equation #A=21000(1-.12)^t# a model of exponential growth or exponential decay, and what is the rate (percent) of change per time period?
1 Answer
This equation describes a decay since
At
Percent of change is
Explanation:
Consider a function
For
graph{2(.9)^x [-10, 10, 5, -5]}
At
As
The result, therefore, will be asymptotic behavior
Therefore, ant function
The value of this function is diminishes during the time interval from
So,
For