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Casio fx-9750G PLUS User Manual

Page 188

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160

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u

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To turn plot points on and off in the RUN or PRGM Mode

The following are the syntax for turning plot points on and off in these modes.

• To turn a plot point on

PlotOn <

x

-coordinate>, <

y

-coordinate>

• To turn a plot point off

PlotOff <

x

-coordinate>, <

y

-coordinate>

• To change the on/off status of a plot point

PlotChg <

x

-coordinate>, <

y

-coordinate>

k

k

k

k

k

Drawing a Line

[Sketch]-[LINE]

To draw a line on a graph, first display the sketch menu and then press 6 (g)
2

(LINE) to display the line menu.

• {

Line} ... {Draw a line between two plotted points}

• {

F·Line} ... {Draw a line}

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u

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To connect two plotted points with a line in the STAT, GRAPH,

TABLE, RECUR and CONICS Modes

[Sketch]-[LINE]-[Line]

Example

To draw a line between the local maximun and local minimum
on the graph of

y

=

x

(

x

+ 2)(

x

– 2)

Use the same View Window parameters as in the example on page
155.

1. After drawing a graph, display the sketch menu and then press 6 (g) 1

(PLOT) 1 (Plot) to display the pointer in the center of the screen.

2. Use the cursor keys to move the pointer to the local maximum and press w to

plot it.

3. Use the cursor keys to move the pointer to the local minimum.

10 - 2

Graphing with the Sketch Function

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