Step 1
The scatter plot that suggests modelling the data with an exponential function
Have following properties.
The data points on the graph should not be scattered far away from each other.
The shape of the curve should either exponentially increasing upwards or exponentially
decreasing downwards.
Mostly the data points should be above the x - axis.
Step 2
The one in which there is a declining trend in the data the graph of such datasets are called
Exponentially decaying.
While the other in which there is increasing trend is called exponentially increasing.