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WAEC Further Mathematics 2016 Question 23

Question 23

Coordinate Geometry

Find the equation of the line which passes through (−4, 3) and parallel to line y = 2x + 5.

  1. A.y = 2x + 11
  2. B.y = 5x + 3
  3. C.y = 2x − 11
  4. D.y = 3x − 5
Show the answer and explanation

Answer: A (y = 2x + 11)

Explanation

Gradient 2: y − 3 = 2(x + 4), so y = 2x + 11.