Click anywhere in the GeoGebra window below to make it active.
Click on the typical point MoveMe to make it active.
Use your right and left arrow keys to move the point along the graph.
Or, just drag the point along the graph.
Notice the x-values that are traced in red! This is the domain of the function.
You need to figure out the endpoint conditions yourself; these are not obvious from the red trace.
You may double-click on the GeoGebra window to get a fully functioning window for
further explorations.
Refresh this page at any time to restore it to its original configuration.