Transformation Rules

Front

Which is a rule for a reflection over the y-axis?

Back

RULE (x, y) --> (−x, y)

Front

What is the rule for rotation of 180 degrees?

Back

RULE (x, y) --> (−x, −y)

Front

What is the rule for rotation of 90 degrees clockwise?

Back

RULE (x, y) --> (y, −x)

Front

Which is a rule for a reflection over the x-axis?

Back

RULE (x, y) --> (x, −y)

Front

What is the rule for rotation of 90 degrees counterclockwise?

Back

RULE (x, y) --> (−y, x)

Front

Define transformation in geometry.

Back

A transformation is an operation that moves or changes a shape in some way to produce a new shape.

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 the fixed point in a rotation called?

Back

The fixed point in a rotation is called the center of rotation.

Front

What is the angle of rotation for a 90-degree clockwise rotation?

Back

The angle of rotation is 90 degrees in the clockwise direction.