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WAEC Further Mathematics 2012 Question 35

Question 35

Coordinate Geometry

A straight line makes intercepts of −3 and 2 on the x and y axes respectively. Find the equation of the line.

  1. A.2x + 3y + 6 = 0
  2. B.3x − 2y − 6 = 0
  3. C.−3x + 2y − 6 = 0
  4. D.−2x + 3y − 6 = 0
Show the answer and explanation

Answer: D (−2x + 3y − 6 = 0)

Explanation

Intercept form: x/(−3) + y/2 = 1. Multiply by 6: −2x + 3y = 6, i.e. −2x + 3y − 6 = 0.