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Casio ClassPad 300 User Manual

Page 259

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20021201

u To determine the distance between any two points

(1) Tap the Graph window to make it active.

(2) Tap [Analysis], [G-Solve], and then [Distance].

• This displays “Distance” on the Graph window, and the ClassPad waits for you to

specify the first point.

(3) Tap the first point on the Graph window.

• This causes a pointer to appear at the location where you tap.

(4) Tap the second point on the Graph window.

• This causes a pointer to appear at the second point, and the distance between the

two points to appear in the message box.

Result Screenshot

3-8-7

Analyzing a Function Used to Draw a Graph

Tip

• Instead of tapping points on the Graph window, you could also

specify points by inputting their coordinates. Without tapping
the Graph window, input a value. This causes a coordinate
specification dialog box to appear. Input the

x

- and

y

-coordinates of the two points.

u To determine the inflection point

You can use the following procedure to determine coordinates of the inflection point for a
cubic function.

Example: To graph the function

y

=

x

3

– 1 and determine its inflection point

u ClassPad Operation

(1) Display the View Window dialog box, and then configure it with the following

parameters.

xmin = –4.9,

xmax = 4.9,

xscale = 1

ymin = –3.3,

ymax = 1.8,

yscale = 1