TI-83 Plus GeoMaster™ Application  Page 44 
Example–
Draw a circle, and then find the equation for that 
circle. Find coordinate pairs for points on the circle. 
1.  Draw a circle
.
2.  Draw a point on the circle using the 
Point on Object
 tool.
3. Select 
Eqns/Coords
 from the 
MEAS
 menu. 
4.  Select the circle. The equation for the circle is displayed. 
5.  Use the arrow keys to move the equation so that you can 
read it easily, press 
¯
, and then move the cursor away 
from the equation. 
6.  Select the point that you just created with the 
Point on Object
 
tool. The coordinates for that point are displayed. 
 
Because the circle and the point intersect, a dialog box lists 
Circle 0 and Point on Object 3. Highlight Point on Object 3, and 
then press 
¯
to select it.
7.  Use the arrow keys to move the coordinates so that you can 
read them easily, press 
¯
, and then move the cursor 
away from the coordinates.