The value option is used to evaluate a selected function for a particular value of x. While viewing a graph, press .

Type or .

"Eval x = ?" appears at the bottom of the screen.

Type a value of x. For x = 2, type "2" and the corresponding value of y will be displayed.

The "1" in the upper right hand corner indicates that the first function is being evaluated. The cursor on the graph indicates the location of the point (x,y).

To evaluate function "2", press .

For function "3", press , again.