Chapter 4: Linear Inequalities Name
Section 2: Using Algebra Date
Topics in Algebra 1 © 2001 Texas Instruments Student Worksheet 4-15
³
Try-It!
é
on Your TI
.
83 Plus or TI
.
73
(continued)
To Do This Press Display
(TI
.
83 Plus shown)
9. Test another point! (Try
M
1
.)
Note
: On the TI
-
73, use
I
rather than
„
.
a
1
X
„
Í
10. You do not have to type in the
number sentence
2X+4>7
again.
Note:
You also can edit an expression after it is
pasted to the line.
Since
1
=TRUE and
0
=FALSE,
2X+4>7
is FALSE when
X=
M
1
.
TI
-
83 Plus:
y
[
y
[
Í
TI
-
73:
$
$
$
$
to highlight
expression
Í
to copy
Í
Graph the inequality
2X + 4 > 7
.
To Do This Press Display
(TI
.
83 Plus shown)
1. Graph this solution set.
Note
: On the TI
-
73, use
I
rather than
„
.
&
:
2
„
\
4
-
|
$
until the cursor is
next to
>
Í
7
2. Set the graph style to the animate
graph style, which lets you see the
graph as it is being plotted, even
when it is on the axis at
Y=0
.
!
until the cursor is in
the left column
Í
until the
ë
style
is indicated
3. Set the viewing window and graph
the inequality by selecting
ZDecimal
.
TI
-
83 Plus:
(
4:ZDecimal
TI
-
73:
(
8:ZDecimal
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