Transformation: Dilation

Front

What is the definition of Pre-image in transformations?

Back

The figure before a transformation has occurred.

Tags

CCSS.HSG.CO.A.2

Front

What is the result of dilating Point B (3, -8) by a scale factor of 1/2?

Back

(1.5, -4)

Tags

CCSS.8.G.A.3

Front

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

Back

(x, y) → (3x, 3y)

Tags

CCSS.8.G.A.3

Front

True or False: The 'image' is the shape before the dilation.

Back

False

Tags

CCSS.8.G.A.3

Front

What does Dilation mean in geometry?

Back

Dilation means to enlarge or reduce a figure.

Tags

CCSS.8.G.A.3

Front

What is the scale factor in a dilation?

Back

The scale factor is a number that describes how much a figure is enlarged or reduced.

Tags

CCSS.8.G.A.3

Front

If a point (x, y) is dilated by a scale factor of 2, what is the new point?

Back

(2x, 2y)

Tags

CCSS.8.G.A.3

Front

What happens to the distances between points during a dilation?

Back

Distances are multiplied by the scale factor.

Tags

CCSS.8.G.A.3

Front

What is the effect of a scale factor less than 1 in dilation?

Back

It reduces the size of the figure.

Tags

CCSS.8.G.A.3

Front

What is the effect of a scale factor greater than 1 in dilation?

Back

It enlarges the size of the figure.

Tags

CCSS.8.G.A.3