Graphing Inequalities

When do you use a closed circle on a graph for an inequality?

• When it is ≥ or ≤

• When it is > or <

• When the number in front of the variable is negative

• When it is only =

When do you "flip the inequalities sign"?

• When you add or subtract a negative

• When it's a 1-step problem

• When you multiply or divide a negative

• When it's a 2-step problem

Match the graph with its inequality.

• a > 11

• a < 11

• a ≥ 11

• a ≤ 11

-3x ≤ 18

• x ≤ -6

• x ≤ 6

• x ≥ 6

• x ≥ -6

Solve 5x + 9 > 34

• x > -5

• x > 5

• x < -5

• x < 5

-3 − 6(4x + 6) > -111

• x > 3
• x < 3
• x < -3
• x > -3

28 − k ≥ 7(k − 4)

• k ≥ -7
• k ≤ -7
• k ≥ 7
• k ≤ 7