Non Linear Powerpoint on two step inequalities

1. If you need to refresh your skills click the tutorial button.
If you are ready for some practice click the Practice
button.
If you want to play a game click the games button

3. Solve the inequalities just like you would an equation.
Except when you multiply or divide by a negative to solve you must
flip the inequality.

4. Solve 2x + 3 < 13
Step 1 We have to get the 3 to the Step 2 We have to divide both sides by
other side by adding opposite to both 2 to get X by itself since we are dividing
sides by a positive we do not have to flip the
2x + 3 < 13 inequality
+ -3 +-3 yielding 2x < 10
2x < 10 yields x < 5
2 2
Since x is by itself we have
successfully solved the inequality
Next

5. Solve -1 x - 5 > 10
2
Step 1 we have to get Step 2 we have to get x by itself by
rid of the 5 by multiplying by the reciprocal of – 1
adding the opposite Which is -2 2
to both sides
-1 x - 5 > 10 -2 * -1 x > 15 * -2
2 +5 +5 2
Since we multiplied by a negative
we have to flip the inequality
Yields -1 x > 15
2
X < - 30
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7. Click picture for
1. -3x – 2 > 28 answers
2. X + 6 < 5
4
3. 6x + 10 < 22
4. -2x – 5 < 18
3

8. 1. X < -10
2. X < -4
3. X<2
4. X > -34.5
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9. Worksheet
Interactive practice

10. Now it is time for the fun stuff click the
picture to go to a game
Inequality game Review
Scavenger
Solving two step
Hunt
equation
basketball game

11. Cureton, Dallas (n.d) Solving Inequalities Retrieved April 26, 2009
from IUS Website:
http://homepages.ius.edu/DCURETON/lessons/hunt.htm
Ten Marks Instructor (March 25, 2010) Solve two Step inequalities
retrieved from YouTubes website:
http://www.youtube.com/watch?v=3Nbn-MVtHWw
Robert Bunge (1999) Algebra Practice Pages Retrieved April 26, 2010
from: http://www.veazeys.com/math/lesson1-3.htm
Kuta Software(n.d) Two Step Inequalities worksheet retrieved from
KutaSoftwares website:
http://www.kutasoftware.com/FreeWorksheets/Alg1Worksheets/Two-
Step%20Inequalities.pdf
Math-Play.com (n.d) Inequality game retrieved from Math-Play’s
website : http://www.math-play.com/Inequality-Game.html
Math-Play.com (n.d.) Two Step Equation Game retrieved from Math-
Plays website: http://www.math-play.com/Two-Step-Equations-
Game.html