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A delivery boy starts at the origin, walks 9 units along the positive -axis, then realises he is still on the -axis. What are his coordinates, and what is his -coordinate?

Class 9Points on the AxesCoordinate Geometry
  • A(9, 0); -coordinate 0
  • B(0, 9); -coordinate 9
  • C(9, 9); -coordinate 9
  • D(0, 0); -coordinate 0

Step-by-Step Solution

Walking only along the -axis keeps . After 9 units to the right he is at (9, 0), -coordinate 0.
Answer: A) (9, 0); -coordinate 0

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