More Lessons for Grade 9
Videos, worksheets, games and activities to help Geometry students learn about transformations on the coordinate plane. In this lesson, we will look at reflection.
What is Reflection in Geometry?
A reflection is an isometry, which means the original and image are congruent, that can be described as a "flip".
To perform a geometry reflection, a line of reflection is needed; the resulting orientation of the two figures are opposite. Corresponding parts of the figures are the same distance from the line of reflection.
Ordered pair rules reflect over the x-axis: (x, -y), y-axis: (-x, y), line y = x: (y, x).
Math Reflection On Coordinate Plane
Describing reflections of simple shapes in the plane, and how to draw them.
Graphing and Describing Reflections
Learn to identify, describe, and graph reflections
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