48
CHAPTER 2
The dotted lines (....) on the screen indicates the graph “Y=X
2
”. (Previous graph).
* Graphs of registered equations are indicated using
dotted lines (the first formula is automatically registered
at the point when selecting “Y=X
2
”).
5. Press
®
to register “Y=X
2
–1”. The screen as
shown on the right will be displayed.
To continue shifting, use ≥
≤
>
<
as
described earlier.
“∆X=0 ∆Y=-1” displayed on the bottom of the graph indicates the amount the
previous graph was shifted in the direction of the X axis and Y axis.
For details, see CHAPTER 11 on page 229.
(2) CHANGE function
In the shift function, it is possible to view the relationship of graphs and equations using
parallel shifting. In the change function, it is possible to view the relationship of equa-
tions and graphs by changing the graph format.
Let’s view the change using graph “Y=
”.
1. Press
Ï
.
Press
B
> ≥
®
.
Select graph “Y=
”.
The screen configuration is the same as for the shift function; however, since the
graph formats are changed, the cursor becomes as shown on the right.
2. Press
≤ (the “Y=
” graph moves upward).
The changes in coordinates are displayed on the
bottom left of the screen (in the diagram, (X=1, Y=1)
is changed to (X=1, Y=2).
3. Press
®
to confirm the change, and the
previous graph will be displayed using dotted lines
as with the shift function.
The registering of equations and graphs is the same
as in the shift function.
* It is possible to specify the shift amount and the change amount in the SHIFT/
CHANGE function using the touch-pen.
For details, see CHAPTER 11 on page 236.
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