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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

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