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WAEC Mathematics 2021 Question 49

Question 49

Coordinate Geometry

The equation of a line is given as 3x − 5y = 7. Find its gradient (slope).

  1. A.5/3
  2. B.3/5
  3. C.−3/5
  4. D.−5/3
Show the answer and explanation

Answer: B (3/5)

Explanation

Rearrange: 5y = 3x − 7, so y = (3/5)x − 7/5 and the gradient is 3/5.