Casio ClassPad 101 User's Guide download pdf (Page 112)

Chapter 3: Graph & Table Application 112

3-6 Analyzing a Function Used to Draw a Graph

Your ClassPad includes a G-Solve feature that lets you perform a variety of different analytical processes on an

existing graph.

What You Can Do Using the G-Solve Menu Commands

While there is a graph on the Graph window, you can use a [G-Solve] menu command to obtain the following

information.

•

x-coordinate for a given y-coordinate .................................................Analysis - G-Solve - x-Cal/y-Cal - x-Cal

•

y-coordinate for a given x-coordinate .................................................Analysis - G-Solve - x-Cal/y-Cal - y-Cal

• Root (the

x-intercept) .................................................................................... Analysis - G-Solve - Root or Y

• Minimum value ................................................................................................ Analysis - G-Solve - Min or I

• Maximum value .............................................................................................. Analysis - G-Solve - Max or U

• Minimum value in the range displayed on the Graph window ................................. Analysis - G-Solve -

f Min

• Maximum value in the range displayed on the Graph window ............................... Analysis - G-Solve - f Max

•

y-intercept ...................................................................................................... Analysis - G-Solve - y-Intercept

• Point of intersection for two graphs .............................................................. Analysis - G-Solve - Intersection

• Integration value for a specified range ........................................................ Analysis - G-Solve - Integral - ∫

• Integration value between the two or more of the graph’s roots .............. Analysis - G-Solve - Integral - Root

• Integration value between the two or

more intersections of two graphs ............................................. Analysis - G-Solve - Integral - Intersection

• Point of inflection ...............................................................................................Analysis - G-Solve - Inflection

• Distance between two points ............................................................................ Analysis - G-Solve - Distance

• Volume of a solid of revolution ......................................................................... Analysis - G-Solve - π ∫

f(x)

Tip:

See “Graph Types and Executable Functions” (page 266) for information about graph types and executable G-Solve

functions.

Using G-Solve Menu Commands

When multiple solutions are obtained by a G-Solve command, only one solution is displayed at a time. For

example, executing [Analysis] - [G-Solve] - [Root] for a cubic function that has two roots will display only one

root at a time. In a case such as this, use the left and right cursor keys (or tap the left and right graph controller

arrows) to cycle between the available solutions.

u To obtain the root of a function

1. On the Graph Editor window, input and store a function, and then tap $ to graph it.

• Here, input

y = x(x + 2)(x – 2) into line y1.

2. Tap [Analysis], [G-Solve], and then [Root], or tap Y.

• This displays “Root” on the Graph window, and locates a pointer at the first

solution of the root (root for smallest value of

x). The x- and y-coordinates

at the current pointer location are also shown on the Graph window.

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Casio ClassPad 101 User's Guide Page 112

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Casio ClassPad 101 User's Guide Page 112

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