To solve and graph simple inequalities involving addition/subtraction. Ch 6.1 Objective: To solve and graph simple inequalities involving addition/subtraction.

Inequality Symbols < symbol for “less than” ≤ symbol for “less than or equal” > symbol for “greater than” ≥ symbol for “greater than or equal” = symbol for “equal”

Graph of an Inequality A line graph only uses the “x”-axis Closed (solid dot) represents “equal” on a graph Open (circle dot) represents “NOT equal” on a graph

Graph the following inequalities. 1) 3) -3 -2 -1 0 1 2 3 4 -3 -2 -1 0 1 2 3 4 2) 4) -3 -2 -1 0 1 2 3 4 -3 -2 -1 0 1 2 3 4

Equations Inequalities Solve and graph. Solve and graph. One Solution -3 -2 -1 0 1 2 3 4 -3 -2 -1 0 1 2 3 4 One Solution Infinite Solutions

Solve and graph the inequalities. 1) 2) -10 0 10 -1 0 1 2 3

Solve and graph the inequalities. 3) 4) -13 0 0 12