Chapter 4 graphing, Kk zoom – Casio fx-7400G PLUS Graphing User Manual
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Chapter 4
Graphing
k
k
k
k
k Zoom
The zoom feature lets you enlarge and reduce a graph on the display.
u
uu
u
uBefore using zoom
Immediately after drawing a graph, press !2 (ZOOM) to display the Zoom Menu.
!2(ZOOM)
1 (BOX) ....... Graph enlargement using box zoom
2 (FACT) ...... Displays screen for specification of zoom factors
3 (IN) ........... Enlarges graph using zoom factors
4 (OUT) ....... Reduces graph using zoom factors
[
1 (ORIG) ...... Original size
Press [ to return to the previous menu
u
uu
u
uTo use box zoom
With box zoom, you draw a box on the display to specify a portion of the graph, and
then enlarge the contents of the box.
Example
To use box zoom to enlarge a portion of the graph
y
= (
x
+ 5)
(
x
+ 4) (
x
+ 3)
Use the following View Window parameters.
Xmin
= –8
Ymin
= –4
Xmax = 8
Ymax = 2
Xscl
= 2
Yscl
= 1
1. After graphing the function, press !2 (ZOOM).
!2(ZOOM)
1
2
3
4
[
1
2
3
4
[
1
2
3
4