Casio CFX-9970G User Manual page 183

10 - 2
Graphing with the Sketch Function
u u u u u 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 <
• To turn a plot point off
PlotOff <
• To change the on/off status of a plot point
PlotChg <
k k k k k Drawing a 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}
u u u u u To connect two plotted points with a line in the STAT, GRAPH,
TABLE, RECUR and CONICS Modes
Example
1. After drawing a graph, display the sketch menu and then press 6 (g) 1
2. Use the cursor keys to move the pointer to one of the points of inflection and
3. Use the cursor keys to move the pointer to the other point of inflection.
x
-coordinate>, <
x
-coordinate>, <
x
-coordinate>, <
To draw a line between the two points of inflection on the
y
graph of
Use the same View Window parameters as in the example on page
155.
(PLOT) 1 (Plot) to display the pointer in the center of the screen.
press w to plot it.
y
-coordinate>
y
-coordinate>
y
-coordinate>
x x x
= ( + 2)( – 2)
[Sketch]-[LINE]
[Sketch]-[LINE]-[Line]
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