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WAEC Mathematics 2014 Question 17

Question 17

Coordinate Geometry

Find the gradient of the line joining the points (2, −3) and (2, 5).

  1. A.0
  2. B.1
  3. C.2
  4. D.undefined.
Show the answer and explanation

Answer: D (undefined.)

Explanation

Gradient = (5 + 3)/(2 − 2) = 8/0, which is undefined (the line is vertical).