Free Inequalities on a number line PDF Worksheets & Answers
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Explanation:
On a number line, an open (unshaded) circle ○ is used for strict inequalities (< or >, where the endpoint is not included), and a closed (filled) circle ● is used for inclusive inequalities (≤ or ≥, where the endpoint is included).
A single inequality has an arrow pointing left (< or ≤) or right (> or ≥). A double inequality like −2 < x ≤ 3 is drawn as a line segment joining two circles at −2 and 3. Remember that integers are whole numbers (positive, negative, or zero).
Example 1: Represent −2 < x ≤ 3 on a number line and list all integers that satisfy it.
Example 2: Write down the inequality shown on the number line below.
GCSE Past Paper Inequalities on a number line Questions & Answers
Worked Solution & Mark Scheme (2 marks)
open circle at 1 means p < 1 → –3 ≤ p < 1 A1
Worked Solution & Mark Scheme (4 marks)
⇒ 4y < 9
⇒ y < 9/4 (2.25) A1