Given:
The given function is

To find whether the function is growth or decay and the growth of decay.
Formula:
The function
is said to be an exponential growth, if the value of a > 0 and r > 0
Again, the function
is said to be an exponential decay, if the value of a > 0 and 0 < r < 1.
Now,


Thus, the value of a > 0 and r > 0, then the given function is an exponential growth function.
Therefore,
The given function is an exponential growth function.