passwella.
Menu

WAEC Further Mathematics 2018 Question 25

Question 25

Coordinate Geometry

The midpoint of M(4, −1) and N(x, y) is P(3, −4). Find the coordinates of N.

  1. A.(2, −3)
  2. B.(2, −7)
  3. C.(−1, −3)
  4. D.(−10, −7)
Show the answer and explanation

Answer: B ((2, −7))

Explanation

(4 + x)/2 = 3 gives x = 2; (−1 + y)/2 = −4 gives y = −7.