Translations and Reflections Review

Front

What is a reflection in geometry?

Back

A reflection is 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 translation in geometry?

Back

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

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What does the coordinate rule (x, y) → (x + 4, y) represent?

Back

This coordinate rule represents a translation 4 units to the right.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What does the coordinate rule (x, y) → (-x, y) represent?

Back

This coordinate rule represents a reflection over the y-axis.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the difference between a reflection and a rotation?

Back

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

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 figure but keeps its shape the same.

Tags

CCSS.8.G.A.3

Front

What is the line of reflection?

Back

The line of reflection is the line over which a figure is reflected to create a mirror image.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

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

Back

The effect is to change the coordinates to (x, -y).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

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

Back

The effect is to change the coordinates to (-x, y).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is a transformation in geometry?

Back

A transformation is an operation that moves or changes a figure in some way.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5