Selecting several functions for graphing.

  • Press the Y= key (top left), then enter the functions shown on the screen to the right for y1 thru y6. (NOTE: You can enter up to 10 different functions.)

  • Use the ARROW keys and the ENTER key to turn off y2, y4, and y6.

    • Position the blinking cursor over the equal sign of the function you want to turn off.

    • Press the ENTER key to toggle the function ON and OFF. A function is ON when the equal sign is highlighted. On the screen to the right, y1, y3, and y5 are ON.