Texas Instruments TI-83-Plus - Page 106

Chapter 4: Linear Inequalities Name
Section 1: Using Graphs & Tables Date
Topics in Algebra 1 © 2001 Texas Instruments Student Worksheet 4-3
Activities
(continued)
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Worksheet Activity 1
Use the number lines below to estimate the solution set of the
following inequalities. Use number sense to place a scale on each
number line so that you are able to show the solution set. Check
several points as shown in the previous activity. Show all of your
work.
1.
x + 2.5 < 7
←→
2.
x
N
3.6
 M
2
←→
3.
x +
3
4
> 4
1
8
←→
Worksheet Activity 2
Use the table of the expression
2.5X
−
1
at the left to find out when
2.5X
−
1<3
. First estimate the answer, and then use number sense
to determine the exact answer. Write your strategy for the
solution, and draw the solution set on a number line.
2.5X
−
1<3
←→