Chapter 8: Draw Instructions
125
Drawing Horizontal and Vertical Lines
Drawing a Line Directly on a Graph
To draw a horizontal or vertical line when a graph is displayed, follow these steps.
1. Select
3:Horizontal
or
4:Vertical
from the
DRAW
menu. A line is displayed that moves as you
move the cursor.
2. Place the cursor on the y-coordinate (for horizontal lines) or x-coordinate (for vertical lines)
through which you want the drawn line to pass.
3. Press
Í
to draw the line on the graph.
To continue drawing lines, repeat steps 2 and 3.
To cancel
Horizontal
or
Vertical
, press
‘
.
Drawing a Line from the Home Screen or a Program
Horizontal
(horizontal line) draws a horizontal line at
Y=
y
.
y,
which can be an expression but not a
list.
Horizontal
y
Vertical
(vertical line) draws a vertical line at
X=
x
.
x,
which can be an expression but not a list.
Vertical
x
To instruct the TI-84 Plus to draw more than one horizontal or vertical line, separate each
instruction with a colon (
:
).
MathPrint™
Classic
