Shading The Region Bounded By Two Expressions; Overlaying Two Inequalities In An Intersection Plot / Union Plot - Casio fx-CP400 User Manual

2. Configure the dialog box with the following settings.
To specify this:
Line type
Line color
3. To apply the settings, return to the dialog box in step 2 of this procedure and then tap [OK].

Shading the Region Bounded by Two Expressions

You can shade the region bounded by two expressions by specifying [ShadeType] as the function type and
then inputting the expressions in the syntax shown below.
{lower function ( ), upper function ( )} | A < < B
Note:
A < < B can be omitted. A < < B can be replaced with > A or < B.
u To shade the region bounded by two expressions
1. Tap [Type] - [ShadeType].
2. Use the above syntax to input two -variable expressions, specify the
-value range, and then press E.
2
Example: { – 1, –
3. Tap $ to graph.
0301 To use the draw shade dialog box to shade the region bounded by
2 2
– 1 and – + 1

Overlaying Two Inequalities in an Intersection Plot / Union Plot

Use the following procedure to overlay two inequalities in an Intersection Plot or Union Plot, which are
described below.
Intersection Plot: Only the parts of the inequalities that overlap are shaded.
Union Plot: The inequalities are overlaid as they are.
u To overlay two inequalities
, s + 1
2
<
in line 1 and s + 1 in line
2
1. Store <
2.
2. On the O menu, tap [Graph Format].
3. On the Graph Format dialog box that
appears, tap the [Inequality Plot] down
arrow and then select [Intersection] or
[Union].
4. Tap $ to graph.
Perform this operation:
Tap "Graph Plot" and then tap the desired line type.
Tap "Line Color" and then tap the desired color.
2
+ 1} | –1 < < 1
Intersection Plot
Chapter 3: Graph & Table Application
Union Plot
99