Two perpendicular lines PQ and QR intersect at (1, -1). If the equation of PQ
MATHEMATICS
JAMB 1995
Two perpendicular lines PQ and QR intersect at (1, -1). If the equation of PQ is x - 2y + 4 = 0, find the equation of QR
- A. x + 2y - 1= -0
- B. 2x + y - 3 = 0
- C. x - 2y - 3 = 0
- D. 2x + y - 1 = 0
Correct Answer: D. 2x + y - 1 = 0
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