Transformations Geometry Vocabulary

True or False: A reflection of A(−10, 2) over the x-axis results in A’(10,2).

• True

• False

A function that takes points in the plane as inputs and gives other points as outputs.

• Answer

• Vector

• Magnitude

• Transformation

A function that moves every point of a pre-image through a specified angle and direction about a fixed point.

• Dilation

• Reflection

• Translation

• Rotation

When a transformation is applied to a figure and then another transformation is applied to its image.

• Rotation

• Glide Reflection

• Composition of Transformations

• Translation

The original figure in a transformation.

• Pre-Image

• Image

• Magnitude

• Rigid Motion

A transformation that preserves distance and angle measure.

• Dilation

• Rigid Motion

• Vector

• Magnitude

A function in which the pre-image is flipped over a line.

• Dilation

• Reflection

• Translation

• Rotation

The composition of a translation followed by a reflection in a line parallel to the translation vector.

• Dilation

• Glide Reflection

• Rotation

• Vector

The new figure in a transformation.

• Pre-Image

• Image

• Vector

• Magnitude

A function in which all of the points of a figure move the same distance in the same direction.

• Dilation

• Reflection

• Translation

• Rotation