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Which three points lie on one straight line?

Class 9Figures on the Coordinate PlaneCoordinate Geometry
  • A(1, 2), (2, 1), (3, 3)
  • B(1, 2), (1, 5), (1, −3)
  • C(0, 1), (1, 0), (1, 1)
  • D(2, 2), (3, 4), (4, 5)

Step-by-Step Solution

All three have , so they lie on the vertical line . In each other set the steps between points change direction or slope.
Answer: B) (1, 2), (1, 5), (1, −3)

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