The intersect option is used to determine a point of intersection of two
graphs. Press .
(The intersect option can also be obtained by using the
to select option 5 and pressing .)
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 using the
up or down cursor
when the desired curve is selected.)
The question "First curve?" appears at the bottom of the screen. Press .
The question "Second curve?" appears at the bottom 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 and press .