Final answer:
The statement 'If a function has constant percentage increase then its graph shows exponential growth' is true.
Step-by-step explanation:
The statement 'If a function has constant percentage increase then its graph shows exponential growth' is true.
Exponential growth occurs when the rate of growth, expressed as a percentage or fraction, is constant. In other words, if a function has a constant percentage increase, it means that the rate at which it grows is always the same. This type of growth is represented by an exponential function, and its graph shows a steep curve that increases rapidly over time.