Transformations M8

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 main types of transformations?

Back

The four main types of transformations are translation, rotation, reflection, and dilation.

Front

What does it mean for two shapes to be congruent?

Back

Two shapes are congruent if they have the same size and same shape.

Front

What is a rotation?

Back

A rotation is a transformation that turns a shape around a fixed point.

Front

How do you perform a 90° clockwise rotation on a point (x, y)?

Back

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

Front

How do you perform a 180° rotation on a point (x, y)?

Back

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

Front

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

Back

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

Front

What is a reflection in geometry?

Back

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

Front

What happens to the coordinates of a point (x, y) when reflected across the y-axis?

Back

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

Front

What happens to the coordinates of a point (x, y) when reflected across the x-axis?

Back

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