Transformations Vocabulary

Front

What is a transformation that produces a mirror image of a figure?

Back

Reflection

Front

What is the original figure called before a transformation occurs?

Back

Pre-image

Front

What type of transformation changes the size of a figure but keeps the shape the same?

Back

Dilation

Front

What do we call figures that have the same shape but different sizes?

Back

Similar

Front

What is the term for a transformation that moves a figure without changing its size or shape?

Back

Translation

Front

What is the line called over which a figure is reflected?

Back

Line of Reflection

Front

If a figure is reflected over the y-axis, what happens to its coordinates?

Back

The x-coordinates change sign.

Front

If a figure is reflected over the x-axis, what happens to its coordinates?

Back

The y-coordinates change sign.

Front

What is the term for two figures that are identical in shape and size?

Back

Congruent

Front

What type of transformation involves rotating a figure around a point?

Back

Rotation