Assuming you would like tips on how to delete a program off of a graphing calculator:
There are usually two ways that you can delete a program off of your graphing calculator- through the menu or by pressing a key combination. To do it through the menu, go to the main screen and look for something that says memory. Once you click on memory, there should be an option that says delete. When you select delete, it will give you a list of everything stored in your calculator's memory. Find the program you want to delete and press enter. Your graphing calculator should then prompt you to confirm that you want to delete the selected program.
The other way to deleta a program is by pressing a key combination. The most common key combination is [2nd] + [MEM]. This will also bring up the memory options on your screen. Use the arrow keys to highlight what you want deleted and press enter. As always, your graphing calculator will ask if you are sure before it completes the deletion.
And that's really all there is too it! Deleting programs off of your graphing calculator is quick and easy- just remember which method works better for you and refer back to these instructions when needed!