The intersection option is used to determine a point of intersection of two graphs. While viewing a graph, press .

to select the intersect option.

The question "Firstcurve?" appears at the bottom of the screen. The cursor appears on the first graph indicated by the "1" in the upper right-hand corner of the screen. (The selected curve is changed by pressing the or .) Press when the desired curve is selected.

The question "Secondcurve?" appears at the bottom of the screen. The cursor appears on the second graph indicated by the "2" in the upper right-hand corner of the screen. Press .

The question "Guess?" appears at the bottom of the screen. Move the blinking cursor close to the desired point of intersection. Press .

The coordinates of the point of intersection appear at the bottom of the screen. Here, the point of intersection is about (2.209, 6.791).