Texas Instruments TI-83-Plus Guide Book

Chapter 4: Linear Inequalities Name
Section 2: Using Algebra Date
Topics in Algebra 1 © 2001 Texas Instruments Student Worksheet 4-16
³
Try-It!
é
on Your TI
.
83 Plus or TI
.
73
(continued)
To Do This Press Display
(TI
.
83 Plus shown)
4. Trace the function. Notice that
where the graph is FALSE,
Y
1
=0
;
where the graph is TRUE,
Y
1
=1
.
)
| or ~ to trace the
function
5. Notice that
Y
1
=0
(FALSE) up
through
X=1.5
(when
X

1.5
).
!
or
"
to trace the
function
6. Keep tracing and you see that the
graph jumps to
Y
1
=1
(TRUE) when
X>1.5
.
Find the exact set using algebra.
Solve
2X+4>7
. Does your answer
agree with this graph?
!
or
"
to trace the
function
Additional Problems
Above, you solved the following inequalities using algebra. Now, graph the solution set of these
inequalities using your calculator. Compare the graph to your calculated answers above.
1.
6.4X>16
2.
1
2
X
N
2

M
2
3.
2X
N
2.1<
M
3.5
True
False

Texas Instruments TI-83-Plus Specifications

General

Display Type	LCD
Display Resolution	96 x 64 pixels
Power Source	4 AAA batteries
Programming Language	TI-BASIC, Z80 Assembly
Backup Power	CR1616 or CR1620 lithium battery
RAM	24 KB
Processor	Zilog Z80
Weight	7.4 oz (210 g) with batteries
Dimensions	7.3 x 3.5 x 0.9 inches