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TranslationsTranslations are a slide or shift.Translations can be achieved by performing two composite reflections over parallel lines.Translations are isometric, and preserve orientation.Coordinate Plane Rules:x,y→(x±a, y±b) where a and b are the horizontal and vertical shifts.Note: If the movement is left, then a is negative. If the movement is down, then b is negative.ReflectionsReflections are a flip.The “flip” is performed over the line of reflection. Lines of symmetry (x-axis; y-axis) are examples of lines of reflection.Reflections are isometric, but do not preserve orientation.Coordinate Plane Rules:Over the x-axis:x,y→(x,-y)Over the y-axis:x,y→(-x,y)Over the line y = x:x,y→(y,x)Over the line y = -x:x,y→(-y,-x)Rotations:Rotations are a turn.Rotations can be achieved by performing two composite reflections over intersecting lines. The resulting rotation will be double the amount of the angle formed by the intersecting lines.Rotations are isometric and only preserve orientation if turned 360? or exhibit rotational symmetry back onto itself (maps onto itself).Coordinate Plane Rules:CCW:CW:Rule:90?270?x,y→(-y,x)180?180?x,y→(-x,-y)270?90?x,y→(y,-x) ................
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