Mathematics for IGCSE & O level - Transformations (Section 3 - No. 38)
A point is at coordinates (4, -2). A reflection over the line y = -1 is applied. What are the new coordinates?
(4, 0)
(4, -2)
(4, 2)
(4, -4)
Explanation
Reflecting over y = -1. From the line (y = -1), the point is down 1 unit. It will then reflect up 1 unit above the line: (4, -1 - 1) = (4, 0)
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