Unit 2 Review

Front

What is a 180 degree rotation?

Back

A 180 degree rotation turns a figure halfway around a point, making it look upside down.

Front

What does it mean for a figure to map onto itself?

Back

It means that after a transformation, the figure looks the same as it did before.

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

What is a translation in geometry?

Back

A translation moves a figure from one place to another without changing its shape or size.

Front

What is a rotation in geometry?

Back

A rotation turns a figure around a fixed point by a certain angle.

Front

What happens when you rotate a point 180 degrees around the origin?

Back

The point moves to the opposite side of the origin.

Front

What is the result of reflecting a point over the x-axis?

Back

The y-coordinate of the point changes sign, while the x-coordinate stays the same.

Front

What is the result of reflecting a point over the y-axis?

Back

The x-coordinate of the point changes sign, while the y-coordinate stays the same.

Front

What does (x, y) --> (x + 2, y - 3) represent?

Back

This represents a translation that moves the point 2 units to the right and 3 units down.

Front

What is the difference between a rotation and a reflection?

Back

A rotation turns a figure around a point, while a reflection flips it over a line.