Test - Reflections, Translations, Rotations (shorter)

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 rotation in geometry?

Back

A rotation is a transformation that turns a figure around a fixed point at a certain angle.

Front

What is a translation in geometry?

Back

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

Front

What is the line of reflection for the point (2, 3) reflected over the line y = 1?

Back

The line of reflection is y = 1, and the reflected point is (2, -1).

Front

How do you perform a 270° clockwise rotation on a point (x, y)?

Back

To perform a 270° clockwise rotation, the new coordinates will be (y, -x).

Front

What is the effect of a reflection over the line y = x on the point (a, b)?

Back

The effect is that the new coordinates will be (b, a).

Front

Identify the transformation: A shape is flipped over the x-axis.

Back

Reflection.

Front

Identify the transformation: A shape is moved 5 units to the right and 3 units up.

Back

Translation.

Front

Identify the transformation: A triangle is turned 90° counterclockwise around the origin.

Back

Rotation.

Front

What is the formula for a 180° rotation around the origin for a point (x, y)?

Back

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