Graphing Inequalities - Texas Instruments TI-84 Plus Manual Book

Graphing Inequalities

Problem
Graph the inequality 0.4x
operations to explore the values of X where the inequality is true and
where it is false.
Procedure
Press z. Select
1.
mode changes all graph style icons to í (dot) in the
Press o. Turn off all functions and stat plots. Enter the left side of the
2.
inequality as
3. Enter the statement of the inequality as
to if true or
1
Press q
4.
Press r † † to move to
5.
inequality, observing the value of
Press o. Turn off
6.
inequality.
Activities
3
N 3x + 5 < 0.2x + 4. Use the
,
Dot Simul
and the right side as
Y4
if false.
0
to graph the inequality in the standard window.
6
, , and
Y4 Y5
, and the default settings. Setting
.
Y5
. This function evaluates
Y6
. Then press | and ~ to trace the
Y6
.
Y
. Enter equations to graph only the
Y6
menu
TEST
Dot
editor.
Y=
73