Texas Instruments TI-89 User Manual

Previews

Basic Function Graphing II

Graph a circle of radius 5, centered on the origin of the coordinate system. View the
circle using the standard viewing window (

ZoomStd

). Then use

ZoomSqr

to adjust the

viewing window.

8. Find the minimum point on the graph

between the lower and upper bounds.

Press

9. Transfer the result to the Home screen,

and then display the Home screen.

Press

8 ? "

Steps and keystrokes

Display

1. Display the

MODE

dialog box. For

Graph

mode, select

FUNCTION

Press

3 B 1 ¸

Steps and keystrokes

Display

minimum point

minimum coordinates