function that is being graphed. When you use the function editor this line is automatically updated for you. If you change the expression being returned then you change the function being graphed.
The health of this stack depends in part upon the integrity of that background script. If you change the function in this way, ONLY change line 2! And remember to use "x" as the variable since that is the parameter being passed to the function.
If you do botch the job you can copy the script from the previous card or, Quit HyperCard and then reenter HyperCard jumping directly into this stack from the Finder. After that the damage will be repaired.