Transformation Rules

Front

What is a dilation in geometry?

Back

A transformation that changes the size of a figure but not its shape, defined by a scale factor.

Tags

CCSS.8.G.A.3

Front

What is the algebraic representation of a dilation with a scale factor of 3?

Back

(x, y) → (3x, 3y)

Tags

CCSS.8.G.A.3

Front

What is the definition of congruent figures?

Back

Geometric figures that have the same shape and size.

Tags

CCSS.8.G.A.2

Front

What is the definition of similar figures?

Back

Geometric figures that have the same shape but not necessarily the same size.

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Front

What is a reflection in geometry?

Back

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

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is a rotation in geometry?

Back

A transformation that turns a figure around a fixed point at a certain angle.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is a translation in geometry?

Back

A transformation that slides a figure from one position to another without changing its shape or size.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

How do you identify a reflection across the x-axis?

Back

If the coordinates of a point (x, y) become (x, -y), it is a reflection across the x-axis.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

How do you identify a rotation of 90 degrees clockwise?

Back

The coordinates of a point (x, y) become (y, -x) after a 90-degree clockwise rotation.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the scale factor in a dilation?

Back

The ratio of the distance from the center of dilation to a point on the image and the distance from the center of dilation to the corresponding point on the original figure.

Tags

CCSS.8.G.A.3