Graphing Inequalities - Texas Instruments TI-84 PLUS - Graphing Calculator Manual Book

4. Press y 5 to return to the home screen. Store
VARS Window X/Y
between the centers of adjacent pixels. Integer values for @
tracing.
5. Press r to plot the function. At what speed does the ticket exceed 250?

Graphing Inequalities

Problem
Graph the inequality 0.4x
of X where the inequality is true and where it is false.
Note: You can also investigate graphing inequalities using the Inequality Graphing application.
The application is pre-loaded on your TI-84 Plus and can be downloaded from education.ti.com.
Procedure
1. Press z. Select
style icons to í (dot) in the
2. Press o. Turn off all functions and stat plots. Enter the left side of the inequality as
right side as .
Y5
3. Enter the statement of the inequality as
: You can use the YVARS shortcut menu to paste Y4 and Y5 in the Y= editor.
Note
4. Press q
to graph the inequality in the standard window.
6
secondary menu. @ and @
X
3
N 3x + 5 < 0.2x + 4. Use the
, , and the default settings. Setting
Dot Simul
editor.
Y=
Y6
to @ . @ and @
5 Y X
specify the horizontal and vertical distance
Y
and @
X
menu operations to explore the values
TEST
Dot
. This function evaluates to
Chapter 17: Activities
are on the
Y
produce nice values for
Y
mode changes all graph
and the
Y4
if true or if false.
1 0
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