Domain and Range of a Function
- Irina Boyadzhiev
This applet can be used to demonstrate the concept of Domain and Range of a function.
- Click on a button to select one of the three functions.
- Drag the 'domain' slider. A vertical ray will scan the viewing window and will project the intersection point of the ray and the function to the x-axis. The domain appears as red interval(s) on the x-axis.
- Drag the 'range' slider. A horizontal ray will scan the viewing window and will project its intersection points with the function to the y-Axis. The range appears as green interval(s) on the y-axis.