5-39
7. Press c. Check to make sure that the K=0 line is magenta colored and then press d. 
  
8. To exit the Modify operation, press J. 
k Copying a Graph Expression to the Graph Relation List while the 
Modify Function is Running
You can use the following procedure to copy the expression (including its currently assigned 
coefficient values) used to draw a graph with the Modify function. 
1. While the graph to be copied is displayed and Modify function is running, press 
K1(COPY).
• This displays the graph relation list screen.
2. Use f and c to move the highlighting to the area to which you want to copy the graph 
expression.
3. Press w.
• This copies the expression and returns to the graph screen.
• You can view the copied expression by pressing J twice and displaying the graph 
relation list screen.
Important!
• If you select an area that already contains an expression in step 2 of the above procedure, 
pressing w in step 3 will overwrite the existing expression with the new one.
• Selecting the area where an expression that is being used for graphing (one whose “=” 
symbol is highlighted) in step 2 of the above procedure and pressing w in step 3 will cause 
the message “Expression in use” to appear. No copy operation is performed in this case.