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Ch.8.7 Reflections
1. Ch.8.7_Reflections.notebook March 05, 2012
Chapter 8.7
Reflections Using Matrices
What are the coordinates
of the vertices?
Express the vertices as a matrix
We can perform reflections using special
2x2 matrices and vertex matrices
Reflection Matrices
over y = x
over xaxis
0 1
1 0
1 0
0 1
over y = x
over yaxis
0 1
1 0 1 0
0 1
Reflect the image above
over the line y = x
0 1
1 0
1