Casio fx-9750G PLUS - Manual (Page 186)

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Graphing with the Sketch Function
k k k k k Plotting Points
[Sketch]-[PLOT]
When plotting points on a graph, first display the sketch menu and then press 6
(g) 1 (PLOT) to display the plot menu.
• { Plot} ... {plot a point}
• { Pl·On} ... {plot point at specific coordinates}
• { Pl·Off} ... {delete point at specific coordinates}
• { Pl·Chg} ... {switch status of point at specific coordinates}
u u u u u To plot points in the STAT, GRAPH, TABLE, RECUR and CONICS
Modes [Sketch]-[PLOT]-[Plot]
Example To plot a point on the graph of y = x ( x + 2)( x – 2)
1. After drawing the graph, display the sketch menu and 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 the locations of the points you want to
plot and press w to plot.
• You can plot as many points as you want.
• The current x - and y -coordinate values are assigned respectively to variables
X and Y.
u u u u u To plot points in the RUN or PRGM Mode [Sketch]-[PLOT]-[Plot]
The following is the syntax for plotting points in these modes.
Plot < x -coordinate>, < y -coordinate>
Example To plot a point at (2, 2)
Use the following View Window parameters.
Xmin = –5
Ymin = –10
Xmax = 5 Ymax = 10
Xscale = 1 Yscale = 2