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JAMB Mathematics 1992 Question 33

Question 33

Coordinate Geometry

Find the equation of the line through (5, 7) parallel to the line 7x + 5y = 12

  1. A.5x + 7y = 120
  2. B.7x + 5y = 70
  3. C.x + y = 7
  4. D.15x + 17y = 90.
Show the answer and explanation

Answer: B (7x + 5y = 70)

Explanation

A parallel line has the form 7x + 5y = k. Through (5, 7): k = 35 + 35 = 70.