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transformation rules
honours geometry 10
| transformation | result |
|---|---|
| reflection over x-axis | (x, -y) |
| reflection over y-axis | (-x, y) |
| reflection over y=x | (y, x) |
| reflection over y=-x | (-y, -x) |
| reflection over (0,0) | (-x, -y) ; same as rotation 180° about the origin |
| rotation 90° about the origin | (-y, x) |
| rotation 180° about the origin | (-x, -y) ; same as reflection over (0,0) |
| rotation 270° or -90° about the origin | (y, -x) |
| rotation 360° about the origin | (x, y) |