Casio ClassPad 300 User Manual page 256

Analyzing a Function Used to Draw a Graph
u To obtain the point of intersection for two graphs
Example: To graph the functions
intersection
(1) Display the View Window dialog box, and then configure it with the following
parameters.
xmin = –5, xmax = 5, xscale = 1
ymin = –5, ymax = 5, yscale = 2
(2) On the Graph Editor window, input and store
and then tap $ to graph them.
• Make sure that only
(3) Tap [Analysis], [G-Solve], and then [Intersect].
• This causes "Intersect" to appear on the Graph window, with a pointer located at the
point of intersection. The
shown on the Graph window.
(4) To obtain other points of intersection, press the left or right cursor key, or tap the left or
right graph controller arrows.
Result Screenshots
3-8-4
y x y
= + 1 and =
y y
1 and 2 are checked.
x y
- and -coordinates at the current pointer location are also
20021201
x 2
, and determine their point of
y x y
= + 1 into line 1 and
y x 2 y
= into 2,