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.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is a rotation in geometry?

Back

A rotation is a transformation that turns a shape around a fixed point, called the center of rotation, by a certain angle.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is a reflection in geometry?

Back

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

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is a dilation in geometry?

Back

A dilation is a transformation that changes the size of a shape by a scale factor, while maintaining its shape.

Tags

CCSS.8.G.A.3

Front

What does the scale factor indicate in a dilation?

Back

The scale factor indicates how much larger or smaller the image will be compared to the original shape.

Tags

CCSS.8.G.A.3

Front

How do you perform a translation of a shape?

Back

To perform a translation, add the same value to the x and y coordinates of each point of the shape.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the effect of a scale factor of 2 in a dilation?

Back

A scale factor of 2 means the image will be twice as large as the original shape.

Tags

CCSS.8.G.A.3

Front

What is the effect of a scale factor of 1/2 in a dilation?

Back

A scale factor of 1/2 means the image will be half the size of the original shape.

Tags

CCSS.8.G.A.3

Front

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

Back

In a reflection across the x-axis, the y-coordinates of the points change sign, while the x-coordinates remain the same.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the difference between a rotation and a reflection?

Back

A rotation turns a shape around a point, while a reflection flips a shape over a line.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5