Sharp EL9600C - Graphing Calculator Teachers Manual page 29

S
ubstitute graph Function
Example
Use substitute graph function to see how the shape of the graph
changes when different numbers are substituted for the variable.
Before carrying out the following operation, press the reset switch located on the back of the unit and press
keys (caution: previously entered equations and memory will be erased).
Key Operation
1
2
3
4
5
6
7
8
EL-9600 Graphing Calculator
Display
Specify Rect mode on the screen.
Enter the graph equation
"AX
Specify substitute graph mode.
Substitute 1 for variable A.
(On left of screen the graph "Y=1X
displayed. B and C are presumed to be
"0" as numbers have not been entered.)
Substitute1 for variable B.
(On left of screen the graph
"Y=1X
sumed to be "0" as numbers have not
been entered).
Substitute -5 for variable C.
(On left of screen the graph
"Y=1X
variables are substituted with numbers.)
Alter the numbers for variable B from 1
to 3 and view the changes in the graph.
(The graph equation is
Y=1X
Similarly, alter the numbers for variable
A from 1 to 0.5 and view the changes
in the graph.
(The graph equation is
Y=0.5X
Notes
As shown, Rect corresponds to
. The example shows
the initial settings of the EL-9600.
3 +BX 2 +C" at Y1.
As shown, the left of the screen shows the
graph coordinate and the right of the screen
shows that input of the variable used in the
equation is being awaited.
3 2
+1X " is displayed. C is pre-
3 2
+1X -5" is displayed. Thus all
3 2
+3X -5).
3 2
+3X -5).
]
]
3
" is