Dilations: Given Scale Factor

Front

What is a dilation in geometry?

Back

A dilation is a transformation that alters the size of a figure but not its shape, using a scale factor.

Tags

CCSS.8.G.A.3

Front

What does the scale factor in a dilation represent?

Back

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

Tags

CCSS.8.G.A.3

Front

If the scale factor is greater than 1, what happens to the figure?

Back

The figure is enlarged.

Tags

CCSS.8.G.A.3

Front

If the scale factor is between 0 and 1, what happens to the figure?

Back

The figure is reduced.

Tags

CCSS.8.G.A.3

Front

How do you find the coordinates of a dilated point?

Back

Multiply each coordinate of the original point by the scale factor.

Tags

CCSS.8.G.A.3

Front

What are the coordinates of Point B (4,9) dilated by a scale factor of 2?

Back

B' (8, 18)

Tags

CCSS.8.G.A.3