Lesson 62:

*inequality – a mathematical statement that has <, >, <, or > as a
symbol of comparison



FYI....      < or > means to use an open circle (excluded)
             < or > means to use a closed circle (included)




                                                                     1
*When solving inequalities...do the same as solving for equations...

    ISOLATE THE VARIABLE!!

    ****One difference...when you multiply or divide by a negative
        number...the inequality symbol is "flipped"!!




                                                                       2
Lesson 62 Examples:
Solve these inequalities and graph their solutions on a number line.
A) 4x > -12




B) 6x + 1 > -5




                                                                       3
C) 2x - 5 < 3




D) 7 < x - 8




                4
E) -2x + 4 < 12




F) -3x + 6 > -9




                  5

7th PreAlg - L62--Feb28

  • 1.
    Lesson 62: *inequality –a mathematical statement that has <, >, <, or > as a symbol of comparison FYI.... < or > means to use an open circle (excluded) < or > means to use a closed circle (included) 1
  • 2.
    *When solving inequalities...dothe same as solving for equations... ISOLATE THE VARIABLE!! ****One difference...when you multiply or divide by a negative number...the inequality symbol is "flipped"!! 2
  • 3.
    Lesson 62 Examples: Solvethese inequalities and graph their solutions on a number line. A) 4x > -12 B) 6x + 1 > -5 3
  • 4.
    C) 2x -5 < 3 D) 7 < x - 8 4
  • 5.
    E) -2x +4 < 12 F) -3x + 6 > -9 5