The type of function is Exponential.
What is a Linear function?
The function whose graph is in the linear straight line then that function is considered a linear function.
An example of this is 2x+3
What is an Exponential function?
An exponential function is a model or a relationship in which there is a constant change in the independent variable that gives the same change in proportionality.
The given function is not showing a linear growth which means there is no straight line so the function will be exponential.
When x increases by 1 unit then the growth factor will be 3/1 = 3
So the exponential growth factor is 3.
What is the exponential growth factor?
Exponential growth is like a pattern of data that shows a huge increase with passing time, and by creating the curve for an exponential function.
Learn more about the exponential growth factor here:
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