Mathematics for IGCSE & O level - Transformations (Section 4 - No. 14)
If a point's coordinates are (4, -1) and it undergoes a reflection over the line y = 1, what are the new coordinates?
(4, -3)
(4, 3)
(-4, 1)
(4, 1)
Explanation
The y-coordinate reflects: 1 - (-1-1) = 3
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