Texas Instruments TI-73 Explorer Manual Book page 198

192
Chapter 10: Drawing
Horizontal and Vertical from the Graph Screen
To draw a horizontal or vertical line on the Graph screen:
1. From the Graph screen, select 2
appears in the middle of the Graph screen. The X- and
Y-coordinates are shown at the bottom of the screen.
2. A line is displayed that moves as you move the cursor.
Place the cursor on the Y-coordinate (for horizontal lines)
or the X-coordinate (for vertical lines) through which you
want the line to pass.
3. Press b to draw the line on the graph.
4. Repeat steps 2 and 3, as necessary. To cancel
, press :.
Vertical
³ Draw a horizontal line from the
Graph screen.
* 2
# $ (as necessary)
b
³ Draw a vertical line from the
Graph screen.
* 2
" ! (as necessary)
b
Horizontal and Vertical from the Home Screen or
Program Editor
From the Home screen or the Program editor,
a horizontal line at Y=y. y can be an integer or an expression.
Horizontal
2
1
4
y
or
3
3
. The cursor
4
or
Horizontal
' is set to
standard default
values.
draws
Horizontal