Functions; Graphing Linear Functions - Casio fx-9860GII Instructions Manual

Before you start
You should be familiar with:
Important keys on the keyboard:
●
● The home screen
● Using the Main Menu to enter the mode you want
● Changing window settings in GRAPH mode
● Using zoom tools in GRAPH mode
● Using trace in GRAPH mode

1 Functions

1.1 Graphing linear functions

Example 1
Draw the graph of the function y = 2x + 1.
Press MENU . You will see the dialog box as shown on the right.
Choose 5: GRAPH and press
The default graph type is Function, so the form Y= is displayed.
Type 2x + 1 and press
SHIF T F3
Press V-Window and choose
which are −10 ≤ x ≤ 10 and −10 ≤ y ≤ 10.
EXE F6
Press and DRAW.
The graph of y = 2x + 1 is now displayed on the screen.
© Oxford University Press 2012: this may be reproduced for class use solely for the purchaser's institute
/ON
SHIF T DEL MENU
AC
EXE
.
EXE
.
F3
STD to use the default axes
Casio fx-9860GII
X,i,T EXE OPTN EXIT
X,i,T
Use to
enter x.
Using a graphic display calculator
For a reminder of how to
perform the basic operations
have a look at your GDC
manual.
2