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Geometry: Rigid Transformations
Identifying Reflections
Description
Identifying Reflections
Introduction
When a figure is reflected on a coordinate plane, its coordinates change according to the axis of reflection. Comparing corresponding points of a figure and its image can help identify whether the reflection occurred across the x-a...
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Transcript
Mason is solving a math problem that lists the coordinates of triangle PQR and its image, triangle P′Q′R′. He needs to identify the axis of reflection.
He compares the coordinates of corresponding vertices and notices that the x-coordinate changes to its opposite, while the y-coordinate stays the same.
In other words, each point fol...
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