Unit 1 Catchup Plan

Front

What is a rotation in geometry?

Back

A rotation is a transformation that turns a figure around a fixed point, called the center of rotation, by a certain angle in a specified direction.

Front

Describe a 90º clockwise rotation.

Back

A 90º clockwise rotation turns a figure 90 degrees to the right around a fixed point.

Front

What is a reflection in geometry?

Back

A reflection is a transformation that flips a figure over a line, creating a mirror image.

Front

How do you reflect a point over the x-axis?

Back

To reflect a point over the x-axis, keep the x-coordinate the same and change the sign of the y-coordinate.

Front

What is a translation in geometry?

Back

A translation is a transformation that moves a figure from one location to another without changing its shape or orientation.

Front

Describe the translation 'Up 2 and Right 6'.

Back

This means to move a figure 2 units up and 6 units to the right on the coordinate plane.

Front

What does it mean to reflect over the y-axis?

Back

To reflect over the y-axis, keep the y-coordinate the same and change the sign of the x-coordinate.

Front

What is the result of a reflection over the x-axis followed by a reflection over the y-axis?

Back

The result is a rotation of 180º around the origin.

Front

How do you perform a translation on a coordinate plane?

Back

To perform a translation, add the translation vector to each point's coordinates.

Front

What is the axis of reflection?

Back

The axis of reflection is the line over which a figure is reflected.