Dilations Practice Intro

Front

What is Dilation?

Back

Dilation means to enlarge or reduce a figure while maintaining its shape.

Tags

CCSS.8.G.A.3

Front

Which statement is FALSE about dilations?

Back

The angles of the shape get larger or smaller.

Tags

CCSS.8.G.A.3

Front

What is the pre-image in a transformation?

Back

The figure before a transformation has occurred.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

If a triangle has vertices A(0,0), B(8,0), C(3,-2), what are the coordinates after a dilation with a scale factor of 4?

Back

A(0,0), B(32,0), C(12,-8)

Tags

CCSS.8.G.A.3

Front

What transformation does the graph show if it appears to have been turned around a point?

Back

Rotation.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What happens to the sides of a shape during a dilation?

Back

The sides of the shape get larger or smaller, but the shape remains similar.

Tags

CCSS.8.G.A.3

Front

What is the scale factor in a dilation?

Back

The ratio that describes how much a figure is enlarged or reduced.

Tags

CCSS.8.G.A.3

Front

If a shape is dilated by a scale factor of 2, what happens to its area?

Back

The area is multiplied by 4 (2^2) because area scales with the square of the scale factor.

Tags

CCSS.7.G.A.1

Front

What is the image in a transformation?

Back

The figure after a transformation has occurred.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

How do you perform a dilation on a point (x,y) with a scale factor k?

Back

The new coordinates are (kx, ky).

Tags

CCSS.8.G.A.3