Unit 3 Review Flashcardizz

Front

What is the result of rotating a point (x, y) 180° about the origin?

Back

The new coordinates will be (-x, -y).

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 does it mean to translate a figure in geometry?

Back

To translate a figure means to slide it in a straight line from one position to another without changing its shape or orientation.

Front

What is the effect of reflecting a point across the x-axis?

Back

The y-coordinate of the point changes sign, resulting in (x, -y).

Front

What is the effect of reflecting a point across the y-axis?

Back

The x-coordinate of the point changes sign, resulting in (-x, y).

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.

Front

What is the result of rotating a point (x, y) 90° counterclockwise about the origin?

Back

The new coordinates will be (-y, x).

Front

What is the result of rotating a point (x, y) 90° clockwise about the origin?

Back

The new coordinates will be (y, -x).

Front

What is the combined effect of reflecting a point across the x-axis and then the y-axis?

Back

The result is equivalent to rotating the point 180° about the origin.

Front

What does it mean to perform a sequence of transformations?

Back

It means applying multiple transformations one after the other to achieve a final position or orientation.