Question

What is the difference between the graph of a exponential growth function and an exponential decay function?

Answer 1

Exponential growth is increasing
Here's `y=2^x` :

graph{y=2^x [-20.27, 20.28, -10.13, 10.14]}

Exponential decay is decreasing
Here's `y=(1/2)^x` which is also `y=2^(-x)`:

graph{y=2^-x [-32.47, 32.48, -16.23, 16.24]}