8th Grade Dilations

Front

A dilation is which of the following: only an enlargement, only a reduction, either an enlargement or a reduction, neither an enlargement nor a reduction?

Back

Either an enlargement or a reduction

Front

When a dilation has a scale factor greater than one, the dilation is an enlargement.

Back

True

Front

When the scale factor of a dilation is less than one, the dilation is a reduction.

Back

True

Front

The __________ is the ratio of a length of the new figure to the corresponding length on the original figure.

Back

scale factor

Front

Similar figures have the same ______ but different ______.

Back

shape; sizes

Front

Coordinate of the image of point B (4,9) under dilation with center at origin and scale factor of 2.

Back

B' (8 ,18)

Front

The point (8, 12) was dilated to become point (2, 3). What was the scale factor?

Back

¼

Front

Does a dilation always produce a congruent figure?

Back

False

Front

What scale factor was used to produce the image? Options: 2, -2, ¹/₂, 1

Back

¹/₂

Front

In a dilation, what mathematical operation is used with the scale factor?

Back

multiplication