Mathematics for IGCSE & O level - Transformations (Section 2 - No. 34)
A point with coordinates (5, -3) is reflected in the x-axis. What are the new coordinates?
(-5, 3)
(5, 3)
(-5, -3)
(3, -5)
คำอธิบาย
Reflection across the x-axis: (x, y) -> (x, -y)