II. Setting a Window - Finding One That Works
5. Exponential Examples
Make certain you enter the exponential functions correctly.
i) Example 1: Graph the function . ZOOM 4 does not give a good graph, but a look at the table indicates that ZOOM 6 will be a good window to use.
Enter the function Use ZOOM 4 Use TABLE Use ZOOM 6
ii) Example 2: Graph the function . You can see that ZOOM 4 doesn't show any of the graph, but ZOOM 6 does show the graph. Notice that the domain of the function is X>5/3.
Enter the function Using ZOOM 4 Using ZOOM 6
iii) Example 3: Graph the function . Instead of using TABLE to find this window, we will use the TRACE feature to determine a proper viewing window. You can see that the Y-values are quite small, so the window will have to reflect that.
Enter the function. Start with ZOOM 4
and use TRACE
to find values.
Use these values to
set the window.
Set the window. Graph the function.