Transformation Rules

Front

What is the transformation rule for a 180-degree rotation?

Back

(x,y) = (-x, -y)

Front

What is the dilation rule when the origin is the center?

Back

(x,y) = (xK, yK)

Front

What is the transformation rule for reflection on the x-axis?

Back

(x,y) = (x, -y)

Front

What is the transformation rule for a 90-degree counterclockwise rotation?

Back

(x,y) = (-y, x)

Front

What is the transformation rule for reflection on the line y = -x?

Back

(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 dilation in geometry?

Back

A dilation is a transformation that alters the size of a figure but not its shape.

Front

What does the term 'reflection' mean in geometry?

Back

Reflection is a transformation that flips a figure over a line, creating a mirror image.

Front

What is the effect of a 90-degree clockwise rotation on the coordinates (x,y)?

Back

(x,y) = (y, -x)

Front

What is the effect of a reflection over the y-axis on the coordinates (x,y)?

Back

(x,y) = (-x, y)