Graphing Inequalities on a Number Line

Choose the inequality that has that solution shown on the graph.

Ashley sees a sign that says you must be more than 48 inches tall to ride a roller coaster. She writes the inequality as h > 48. How can she graph the solutions of the inequality?

• Plot an open circle at 48 and shade left.

• Plot a closed circle at 48 and shade left.

• Plot an open circle at 48 and shade right.

• Plot a closed circle at 48 and shade right.

When you graph an inequality, you use a closed dot when you use which symbols?

• ≤, ≥ 

• <, >

• ≤, <

• ≥, >

When graphing an inequality, you use an open dot when you use which symbol?

• <, >

• ≤, ≥ 

• ≤, <

• ≥, >

Match the graph with its inequality.

• a > 11

• a < 11

• a ≥ 11

• a ≤ 11

What are two numbers that could be x in  x < 8?

• 8.6, 7.9

• 11, 16

• 0.8, 5.9

• 12, 7.1

Would you use a closed or open circle to graph x < 3?

• Closed

• Open

Which mistakes did he make? Check all that apply.

• The inequality should be s < 270.

• The inequality should be s = 270.

• The number line should have a closed circle at 270.

• The number line should be shaded to the left.

• The entire number line should be shaded.

Amani's mom spends more than 2 hours planning for Amani's birthday. The inequality represents the situation. Which graph represents the inequality?

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When graphing an inequality, you use an open dot when you use which symbols?

• <, >

• ≤, ≥

• ≤, <

• ≥, >