Multiple Choice 1.5 minutes 1 pt Identify the transformation from ABC to ABC. But points, lines, and shapes can be rotates by any point (not just the origin)! When that happens, we need to use our protractor and/or knowledge of rotations to help us find the answer.(x,y)\rightarrow (−x,−y)\). 1 pt The rule for reflection over the y-axis is (x, y) -> (-x, y) (x, -y) (y, x) (-y, x) 3. Flashcards Learn Test Match Q-Chat Get a hint. The rotation rules above only apply to those being rotated about the origin (the point (0,0)) on the coordinate plane. Study with Quizlet and memorize flashcards containing terms like Reflection over x-axis, Reflection over y axis, Reflection over the line yx and more. If we compare our coordinate point for triangle ABC before and after the rotation we can see a pattern, check it out below: To derive our rotation rules, we can take a look at our first example, when we rotated triangle ABC 90º counterclockwise about the origin. Example 1: Find the position of the point K (5, 7) after the rotation of 90° (CCW) using the rotation formula. Rotation Rules: Where did these rules come from? Flashcards Learn Test Match Q-Chat Get a hint. Study with Quizlet and memorize flashcards containing terms like 90 degrees clockwise, 180 degrees clockwise 180 degrees counterclockwise, 270 degrees clockwise and more. Yes, it’s memorizing but if you need more options check out numbers 1 and 2 above! Study with Quizlet and memorize flashcards containing terms like Rotate 90 Clockwise, Rotate 180 Clockwise, Rotate 270 Clockwise and more.
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