Dr. Kat Math Practice

Plot Inclusive Intervals

Lesson Page 3, Section 3

What you'll work on

Identify inclusive inequalities (≥ and ≤) and graph them on a number line using a closed circle at the endpoint.

Big Idea for this lesson

$A painted number line on parchment paper showing two examples stacked one above the other: the upper line has a small filled solid dot near the right end with painted soft amber shading extending rightward; the lower line has a small open hollow circle near the right end with painted soft amber shading extending rightward. The visual contrast between the filled solid dot and the hollow circle is the focal point — no text or numbers.$

Inclusive inequalities (≥ or ≤) use closed circles on the number line because the endpoint itself is part of the solution. If the endpoint is included, the circle is filled in.

6 questions · pace yourself · explanations on every answer

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