# Periodic Functions

Explore the app to discover the definition and the graph properties of periodic functions, then answer the questions below the app.

Select "Explore!" in the app menu, then move the points such that the graph of the function becomes continuous. What can you say about the position of the start and end points of the function over a period?

In the app below, enter the function . Is this a periodic function? If so, what is its period?

Use the app above to enter other trig functions and explore their period.