Summary: Inequalities

Inequalities                                                                 October 24, 2011

OBJECTIVE: SWBAT RECALL INEQUALITIES AND HOW TO SOLVE THEM

Today we relearned inequalities. I actually remembered this from when we were in sixth grade and that all we had to do was just remember what the sign were. Those signs were: less than of equal to (≤), less than (<), greater than or equal to (≥), and greater than (>). We also learned that when you graph inequalities, you use a dashed line, not a regular line. Also we learned that when you’re writing inequalities on the number line there are open and closed circles. Open circles mean less than or greater than and closed circles mean it has the equal to part with it. An example is shown below.

EXAMPLE:

  3 ≤ x-2 ----------------------------> Your Problem

+2   +2-----------------------------> Add 2 to 3 and -2

5 ≤ x -----------------------> Answer used to graph on number line