Transformations

Front

What is the Algebraic Notation for a reflection over the x-axis?

Back

(x, y) → (x, -y)

Front

What is the Algebraic Notation for a rotation of 270° counterclockwise?

Back

(x, y) → (y, -x)

Front

Reflections over the x-axis change the ____-__________.

Back

y-coordinate

Front

True or False: A dilation produces a congruent figure.

Back

False

Front

Which answer shows a reflection across the x-axis?

Back

(x, y) → (x, -y)

Front

What is a transformation in geometry?

Back

A transformation is an operation that moves or changes a shape to create a new shape.

Front

What are the four types of transformations?

Back

Translation, Rotation, Reflection, Dilation.

Front

What is a translation?

Back

A translation moves a shape without changing its size, shape, or orientation.

Front

What is a rotation?

Back

A rotation turns a shape around a fixed point, called the center of rotation.

Front

What is a reflection?

Back

A reflection flips a shape over a line, creating a mirror image.