I. An inequality is an algebraic sentence that contains the symbol <, >, ≤, ≥, or ≠ because the sides are not equal
II. An inequality can sometimes be solved the same way as an equation
III. When graphing on a number line
A. <> Use an open circle if the value at that spot is not included in the solution
B. ≤ or ≥ Use a filled in circle if the value at that spot is a possible solution
IV. If you multiply both sides of an inequality by a negative number it will reverse the direction of the inequality sign
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