To illustrate the coordinate system

To illustrate the coordinate system, follow these steps:
1. Open the telzaviba.mxd map document under the supporting files
C:\ArcGISByExample\telzaviba\Data\. You can copy it from the
supporting files for this chapter.
2. Bring up Draw by going to the Customize menu, point to Toolbars, and then
click on Draw, as illustrated in the following screenshot. The Draw toolbar
will allow us to add graphics to the map.
3. From the Draw toolbar, you can draw different graphics with multiple
geometries. Point to the rectangle icon and choose the Marker point since we
will be drawing points,
4. Hide the Cell Towers layer for now, to remove the clutter from the map,
by unchecking the Cell Towers layer.
5. Use the Marker tool to add a point to the map; you will notice that a default
green dot will be added to the map.
6. Double-click on the Marker point to open the graphics properties. Here you
can change the color and properties of this graphic. Click on the Location tab
and take note of the location of the point. This is the x and y coordinate for
that particular marker
7. Now add five points, as illustrated in the next screenshot; I have manually
added a rounded location to each point. Note how it looks like a regular x
and y plane. The x axis increases from left to right while the y axis decreases
from top to bottom.