Tuesday, November 16, 2010

Solving Inequalities

Basic inequalities are solved in the same manner as equations.  Isolate the variable on the left.  The inequality sign will replace the equal sign.  Remember that when multiplying or dividing both sides by a negative number, the inequality sign is reversed.  When graphing the solution set on a number line - an open circle means that the number at that point is not included in the solution set.  A closed circle means that the number at that point is included in the solution set.  This is represented by the    or    ≥  signs.   The > and < represent open circles.  Here is a Brainpop video about graphing inequalities.  Take a graded quiz after viewing the video.  Print out your results and turn them in to me for extra credit.  Again you may need to sign up for a free trial.

2 comments:

  1. I got this the first day you explained it. I think this is one of the easiest things we have done ALL year!!!;)

    *Monica Sanchez*

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  2. Monica, were you able to view the video? I am glad that you find this concept easy to master. We will move on to linear inequalities after the holiday break (January).

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