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Casio ClassPad 300 PLUS User Manual

Page 180

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20050501

2-9-3

Using the Main Application in Combination with Other Applications

(3) Drag the stylus across “

x

^2 – 1” in the work area to

select it.

(4) Drag the selected expression to the Graph window.

• This graphs

y

=

x

2

– 1. This graph reveals that

the

x

-intercepts are

x

=

±1.

Tip

• As can be seen in the above example, a graph can be drawn when you drop an expression in the

form of

f

(

x

) into the Graph window. In the case of the 3D Graph window, the expression must be

in the form of

f

(

x

,

y

).

• For more information about the Graph window, see Chapter 3. For more information about the 3D

Graph window, see Chapter 5.