33742494
Description
Flashcards by Tahirintsoa Naharivelo, updated more than 1 year ago
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Created by Tahirintsoa Naharivelo
about 4 years ago
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| Question | Answer |
| -90° clockwise rotation | (x,y) → (y,-x) clockwise = -x |
| 90° counterclockwise rotation | (x,y) → (-y,x) counterclockwise = -y |
| 180° clockwise or counterclockwise | (x,y) → (-x,-y) switch the signs, make negative |
| 270° counterclockwise | (x,y) → (y,-x) 270° = -90° |
| -270° clockwise | (x,y) → (-y,x) -270° = 90° |
| x-axis reflection | (a,b) → (a,-b) |
| y-axis reflection | (a, b) → (-a, b) |
| origin reflection | (a, b) → (-a, -b) |
| line y = x reflection | (a, b) → (b, a) |
| line y = -x reflection | (a, b) → (-b, -a) |
| line x = a | (x, y) → (2a - x, y) |
| writing dilation transformation | (x, y) → (ax, ay) |
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