Casio fx-9750G Sketch Function - Manual (Page 7)

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To graph an inverse function in the RUN or PRGM Mode
The following is the syntax for graphing an inverse function in these modes.
Inverse
• Use the variable data (VARS) menu to specify the function to be graphed.
• You can only graph the inverse of functions whose graph type is specified as
rectangular coordinate type.
k k k k k Plotting Points
When plotting points on a graph, first display the sketch menu and then press 6
(
g
) 1 (PLOT) to display the plot menu.
6 (
g
) 1 (PLOT)
1 (Plot) ........ Plot a point
2 (Pl•On) ..... Plot point at specific coordinates
3 (Pl•Off) ..... Delete point at specific coordinates
4 (Pl•Chg) ... Switch status of point at specific coordinates
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To plot points in the STAT, GRAPH, TABLE, RECUR and CONICS
Modes
Example To plot a point on the graph of y = x ( x + 2)( x – 2)
1. After graphing the function, display the sketch menu and perform the following
operation to cause the pointer to appear on the graph screen.
!4 (Sketch) 6 (
g
) 1 (PLOT) 1 (Plot)
2. Use the cursor keys (
f
,
c
,
d
,
e
) 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.
e
~
ef
~
f
w
• The current x - and y -coordinate values are assigned respectively to variables X
and Y.
Graphing with the Sketch Function
10 - 2
1 2 3 4 5 6
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