Casio fx-9750G Sketch Function User Manual
Page 10

182
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.
6
(
g
)
2
(LINE)
1
(Line) ........ Draw a line between two plotted points
2
(F•Line) .... Draw a line
uuuuu
To draw a line between two plotted points in the STAT, GRAPH,
TABLE, RECUR and CONICS Modes
Example
To draw a line between the two points of inflection on the graph
of
y
=
x
(
x
+ 2)(
x
– 2)
Use the same View Window parameters as in the example on page
176.
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 to one of the points of
inflection and press
w
to plot it.
d
~
df
~
f
w
3. Use the cursor keys to move the pointer to the other point of inflection.
e
~
ec
~
c
10 - 2
Graphing with the Sketch Function
1 2
3 4 5 6
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