# 6.12: Recognizing Reflections

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**Practice**Reflections

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Coordinate Notation

A coordinate point is the description of a location on the coordinate plane. Coordinate points are commonly written in the form (*x*,

*y*) where

*x*is the horizontal distance from the origin, and

*y*is the vertical distance from the origin.

Coordinate Plane

The coordinate plane is a grid formed by a horizontal number line and a vertical number line that cross at the (0, 0) point, called the origin. The coordinate plane is also called a Cartesian Plane.Geometric Patterns

Geometric patterns are visual patterns of geometric figures that follow a rule.Image

The image is the final appearance of a figure after a transformation operation.perpendicular bisector

A perpendicular bisector of a line segment passes through the midpoint of the line segment and intersects the line segment at .Perpendicular lines

Perpendicular lines are lines that intersect at a angle.Preimage

The pre-image is the original appearance of a figure in a transformation operation.Reflection

A reflection is a transformation that flips a figure on the coordinate plane across a given line without changing the shape or size of the figure.Transformation

A transformation moves a figure in some way on the coordinate plane.Rigid Transformation

A rigid transformation is a transformation that preserves distance and angles, it does not change the size or shape of the figure.### Image Attributions

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Description

Learn to recognize reflections as flips and also lines of reflection.

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Difficulty Level:

At Grade
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Date Created:

Jan 23, 2013
Last Modified:

Aug 11, 2016
Vocabulary

None

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