Graphing Inequalities on a Number Line
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Objective
I can represent inequalities on a number line using open or closed circles and arrows.
Part 1 of 4
Warm-up video
Kayla Jones · 5:04
We don't generate video — this one is by Kayla Jones on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 concepts
- 1
When graphing inequalities on a number line, the symbols < and > use an open dot, while ≤ and ≥ use a closed dot.
- 2
When graphing x < 3 on a number line, you would put an open dot on 3 and the arrow would point to the left.
- 3
If a number line has a closed dot on 1 and the arrow points to the right, the inequality is x ≥ 1.
Part 3 of 4
Practice
10 questions
What type of dot is used on a number line to represent 'less than or equal to'?
If a number line has an open dot at -5 and an arrow pointing to the left, write the inequality that it represents.
Part 4 of 4
Exit ticket
Quick comprehension check
“Represent the inequality x ≥ 5 on a number line. Be sure to use the correct type of circle and direction of the arrow.”
Sample answer included in the free materials
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Teacher Guide
Complete lesson plan with answer keys and alternate activities
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