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If a point is reflected from Quadrant I to Quadrant IV across the -axis, what changes?

Class 8Plotting PointsCoordinate Geometry
  • AThe sign of the -coordinate
  • BThe sign of the -coordinate
  • CBoth signs
  • DNothing changes

Step-by-Step Solution

Reflecting across the -axis keeps the same and changes the sign of . So (a, b) becomes (a, -b).
Answer: A) The sign of the -coordinate

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