Texas Instruments TITANIUM TI-89 - Manual (Page 87)

Previews 87
learn how to enter a function, produce a graph of the function, trace a curve, find a
minimum point, and transfer the minimum coordinates to the Home screen.
Explore the graphing capabilities of the TI-89 Titanium by graphing the function
y=(|x
2
N3|N10)/2.
Steps and keystrokes Display
1. Display the Y= Editor .
Press 8 #
2. Enter the function (abs(x
2
N 3) N 10)/2 .
The screen shot shows the “pretty print”
display at
y1= .
Press c ½ A ¸ X Z 2 | 3 d
| 1 0 d e 2 ¸
3. Display the graph of the function.
Select 6:ZoomStd by pressing 6 or by
moving the cursor to 6:ZoomStd and
pressing ¸.
Press „ 6
entry line