Montgomery County Schools / Overview · Web viewUnit 4 Geometric TransformationsName_____...
Transcript of Montgomery County Schools / Overview · Web viewUnit 4 Geometric TransformationsName_____...
Unit 4 Geometric Transformations Name __________________________Reflections Guided Notes
Reflection: __________________________________________________________________________________________________________________________________________________________________________________________
*When you look in a mirror, what happens? ______________________________________________________________
Reflection over the x-axis:Example- Using the mirror
Do you see a pattern in the coordinates? __________________________________________________________________________________________________________________________________________________________________
Rule for REFLECTION OVER THE X-AXIS:
A ___________ A’ __________
B ___________ B’ __________
C ___________ C’ __________
D ___________ D’ __________
Reflection over the y-axis:Example- Using the mirror
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.
X ___________ X’ __________
Y ___________ Y’ __________
Z ___________ Z’ __________
2)
Pre-image Reflection over the x-axis
(3, -2)
(-1, 0)(-5, 7)
Pre-image Reflection over the y-axis
(3, -2)
(-1, 0)(-5, 7)
Independent Practice-Reflections
Explain your process.
On 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: ___________________________________________________________________________________________
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Unit 4 Geometric Transformations Name ____________________Homework-Reflections