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WAEC Mathematics 2005 Question 46

Question 46

Inequalities

Represent the solution of 3x + 15 > 0 on a number line.

Diagram for this question
  1. A.Number line A
  2. B.Number line B
  3. C.Number line C
  4. D.Number line D
Show the answer and explanation

Answer: D (Number line D)

Explanation

3x > −15, so x > −5. Line D has an open circle at −5 with the arrow pointing right.