Geometric Transformations (Reflections, Translations, Dilations)

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 translation in geometry?

Back

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 is a dilation in geometry?

Back

A transformation that changes the size of a figure but keeps its shape, defined by a scale factor.

Tags

CCSS.8.G.A.3

Front

What is the scale factor in dilation?

Back

The ratio of the size of the image to the size of the pre-image.

Tags

CCSS.8.G.A.3

Front

If the scale factor is 1/2, what happens to the size of the figure?

Back

The figure is reduced to half its original size.

Tags

CCSS.8.G.A.3

Front

What is the rule for translating a point (x, y) by (x + 2, y - 1)?

Back

The new coordinates will be (x + 2, y - 1).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What type of transformation is a 90-degree turn around a point?

Back

Rotation.

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 the figure over a line, while a rotation turns the figure around a point.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

How do you identify a translation on a graph?

Back

Look for a figure that has moved to a new location without changing its shape or orientation.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What happens to the coordinates of a point (3, 4) when reflected over the x-axis?

Back

The new coordinates will be (3, -4).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5