Montgomery County Schools / Overview
Unit 4 Geometric TransformationsName__________________________Reflections Guided NotesReflection: __________________________________________________________________________________________________________________________________________________________________________________________*When you look in a mirror, what happens? ______________________________________________________________Reflection over the x-axis:Example- Using the mirror4400550502920A ___________A’ __________B ___________B’ __________C ___________C’ __________D ___________D’ __________020000A ___________A’ __________B ___________B’ __________C ___________C’ __________D ___________D’ __________lefttopDo you see a pattern in the coordinates? __________________________________________________________________________________________________________________________________________________________________Rule for REFLECTION OVER THE X-AXIS: Reflection over the y-axis:Example- Using the mirror476251174752)002)left12700004514850514985X ___________X’ __________Y ___________Y’ __________Z ___________Z’ __________00X ___________X’ __________Y ___________Y’ __________Z ___________Z’ __________Do you see a pattern in the coordinates? __________________________________________________________________________________________________________________________________________________________________Rule for REFLECTION OVER THE Y-AXIS: Practice without a grid:3. Using the coordinates given, complete the table for a reflection over the x-axis and the y-axis.Pre-imageReflection over the x-axis(3, -2)(-1, 0)(-5, 7)Pre-imageReflection over the y-axis(3, -2)(-1, 0)(-5, 7)Independent Practice-ReflectionsExplain your process.left471487500On the coordinate grid below, draw the image of ABCDE after a reflection over the x-axis. Then explain your process so that someone who knows nothing about transformations would be able to understand.Explain: ___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Unit 4 Geometric Transformations Name ____________________Homework-Reflections ................
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