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UP TGT Mathematics Co-ordinate Geometry Test Series - Part 5

The image of the point (1, 2) in the line mirror y = x is:

Type: MCQ • Marks: 1
The image of the point (1, 2) in the line mirror y = x is:
Options
A. (-1, -2)
B. (1, -2)
C. (-2, -1)
D. (2, 1)
Explanation
Reflection in y = x swaps coordinates: (2, 1).
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