Lesson 8-5: Graphing Inequalities

What is an inequality in mathematics?

• A sentence that compares two equal numbers

• A sentence that compares expressions

• A sentence that subtracts two numbers

• A sentence that adds two numbers

Why do we use graphs to represent inequalities?

• To make the numbers look bigger

• To avoid writing all possible solutions

• To make the numbers look smaller

• To avoid using numbers

What does an open circle on a graph indicate?

• The number is the largest solution

• The number is the only solution

• The number is not included in the solution set

• The number is included in the solution set

• Graph with a closed circle at 2 and arrow going to the right.

• Graph with an open circle at 2.

• Graph with an open circle at 2 and arrow going to the right.

• Graph with a closed circle at 2 and going to the left.

• Closed Dot on -3 and arrow going to the right.

• Closed Dot on -3 and arrow going to the left.

• Open Dot on -3 and arrow going to the left.

• Closed Dot on -1 and arrow going to the right.

• Open Dot on -1 and arrow going to the left.

• Closed Dot on -1 and arrow going to the left.

Write the inequality represented by the graph below.

• x ≥ 3
• x > 3
• x < 3
• x ≤ 3

Write the inequality represented by the graph below.

• x ≤ 0

• x > 0

• x ≥ 0

• x < 0

How do you graph the inequality 'G is less than or equal to negative two'?

• Open circle on -2, arrow to the right

• Closed circle on -2, arrow to the left

• Open circle on -2, arrow to the left

• Closed circle on -2, arrow to the right

If you have a closed dot on zero and the arrow goes to the left, what inequality does this represent?

• X is greater than or equal to zero

• X is less than or equal to zero

• X is less than zero

• X is greater than zero