Translations, Rotations, Reflections, and Dilations.

Front

What is a translation in geometry?

Back

A translation is a transformation that moves every point of a shape the same distance in a specified direction.

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 is a rotation in geometry?

Back

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

Front

What is a dilation in geometry?

Back

A dilation is a transformation that changes the size of a shape but not its shape, using a scale factor.

Front

What is the scale factor in a dilation?

Back

The scale factor is a number that describes how much a shape is enlarged or reduced during a dilation.

Front

How do you reflect a point (x, y) across the x-axis?

Back

The reflection of (x, y) across the x-axis is (x, -y).

Front

How do you reflect a point (x, y) across the y-axis?

Back

The reflection of (x, y) across the y-axis is (-x, y).

Front

What is the rule for rotating a point 90° clockwise?

Back

The rule for rotating (x, y) 90° clockwise is (y, -x).

Front

What is the rule for rotating a point 180°?

Back

The rule for rotating (x, y) 180° is (-x, -y).

Front

What is the rule for rotating a point 90° counterclockwise?

Back

The rule for rotating (x, y) 90° counterclockwise is (-y, x).