Texas Instruments TI-83 Plus Manual Book page 116

Chapter 4: Linear Inequalities
Section 2: Using Algebra
Activities
(continued)
Scoring: Points are
based on how quickly you
solve each equation.
Unless you specify point
or time limits for this
activity, students can play
the activity when four
missed equations stack
up, the game is over.or
â
they press áQUIT
There is no time limit.
Additional Problems
Solve the following inequalities. Show your work.
1. 6.4x > 16
2x N 2.1 < M3.5
3.
4. A cell phone company charges a flat fee of $15 per month to use the phone. They also charge
25 cents for each phone call you make no matter how long you are on the phone. Your budget
allows you to spend at most $30 per month for the phone. How many phone calls will you be
able to make each month? (Tax is included in the prices.) Show your work. Write a short
paragraph explaining why would you choose this company or why not.
Topics in Algebra 1
Free Fall
1. Highlight a level (silver = less difficult; gold = more difficult),
and press b to select it.
2. When you are ready to start, press any key.
3. Watch the equation as it falls, and quickly solve for
the solution (press Ì for negative numbers), and press b
before the equation hits bottom. If you give an incorrect
answer, the correct answer is displayed; press any key to
resume play. The incorrect equation stacks up at the bottom
of the screen, giving you less time to solve the next equation.
4. Follow your teacher's instructions for how long to play the
activity.
to stop.
5. What level did you play?
6. What was your score?
© 2001 Texas Instruments
Name
Date
1
x N 2  M2
2.
2
. Enter
x
Student Worksheet 4-13