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To plot an inequality, such as x>3, on a number line, first draw a circle over the number (e.g., 3). Then if the sign includes equal to (≥ or ≤), fill in the circle. If the sign does not include equal to (> or <), leave the circle unfilled in. Finally, draw a line going from the circle in the direction of the numbers that make the inequality true.
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- Subject:
- Algebra
- Higher Education
- Mathematics
- Practitioner Support
- Material Type:
- Teaching/Learning Strategy
- Provider:
- Khan Academy
- Date Added:
- 11/17/2020