Transformations Review

Front

What is a scale factor in dilation?

Back

A scale factor is a number that scales, or multiplies, the dimensions of a figure during a dilation. It determines how much larger or smaller the figure becomes.

Tags

CCSS.8.G.A.3

Front

If a point (x, y) is dilated by a scale factor of 1/4, what will be the new coordinates?

Back

The new coordinates will be (x/4, y/4).

Tags

CCSS.8.G.A.3

Front

What happens to a point when it undergoes a 180 degree rotation around the origin?

Back

The coordinates of the point (x, y) will change to (-x, -y).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the result of rotating a point (a, b) 90 degrees clockwise around the origin?

Back

The new coordinates will be (b, -a).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the result of reflecting a point across the y-axis?

Back

The coordinates of the point (x, y) will change to (-x, y).

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 figure over a line, creating a mirror image.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the difference between enlargement and reduction in dilation?

Back

Enlargement increases the size of a figure (scale factor > 1), while reduction decreases the size (scale factor < 1).

Tags

CCSS.8.G.A.3

Front

What does it mean for a transformation to be isometric?

Back

An isometric transformation preserves the shape and size of a figure, such as translations and rotations.

Tags

CCSS.HSG.CO.A.2

Front

What is the mirror line in a reflection?

Back

The mirror line is the line over which a figure is reflected, creating a mirror image.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

How do you determine the scale factor when given original and dilated points?

Back

The scale factor can be found by dividing the coordinates of the dilated point by the corresponding coordinates of the original point.

Tags

CCSS.8.G.A.3