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WAEC Mathematics 1996 Question 13

Question 13

Inequalities

If x is a real number which of the following is more illustrated on the number line?

Diagram for this question
  1. A.x < 4
  2. B.x > −2
  3. C.−2 < x ≤ 4
  4. D.−3 ≤ x < 4
  5. E.−2 ≤ x < 4
Show the answer and explanation

Answer: E (−2 ≤ x < 4)

Explanation

A filled (solid) dot means the end value is included and an open dot means it is not. The line runs from a solid dot at −2 to an open dot at 4, so −2 ≤ x < 4.