Transformations: Translations, Reflections, Rotations

Front

What is the original figure prior to a transformation called?

Back

Pre-image

Front

What is a reflection?

Back

When you flip or mirror an object across a line.

Front

What is the definition of a translation?

Back

To slide up, down, left, or right.

Front

What transformation is represented by the rule (x, y) ----> (-x, y)?

Back

Reflect over the y-axis

Front

What is the definition of rotation?

Back

To make a circular movement around a point.

Front

What is a transformation?

Back

A change in the position, size, or shape of a figure.

Front

What does it mean to translate a figure?

Back

To move it without changing its shape or orientation.

Front

What is the effect of a reflection over the x-axis?

Back

The y-coordinates of the points are inverted.

Front

What is the effect of a reflection over the y-axis?

Back

The x-coordinates of the points are inverted.

Front

What is a rotation of 90 degrees clockwise?

Back

A transformation that turns a figure around a point by 90 degrees in the clockwise direction.