Dilations-Make Up

Definition: The figure after a transformation has occurred. 

• Pre-image
• Image
• Translation
• Reflection

Similar figures have the same ______ but different ______. 

• measure; shapes
• sizes; shapes
• value; measures
• shape; sizes

A dilation is which of the following: 

• An enlargement
• A reduction
• Either an enlargement or a reduction
• Neither an enlargement or a reduction

A dilation creates a similar figure.

• True
• False

Which is FALSE about dilations?

• The shape is the same.
• The size changes.
• The sides of the shape get larger or smaller.
• The angles of the shape get larger or smaller.

Which of the following is the algebraic representation for a dilation?

• (x, y) → (x, 3y)
• (x, y) → (3x, 3y)
• (x, y) → (x, y - 3)
• (x, y) → (.5x, .4y)

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

• reduction
• enlargement
• scale factor
• center of dilation

If the scale factor is less than one, the new figure will be

• an enlargement
• a reduction
• a scale factor
• bigger

If the scale factor is greater than one, the new figure will be

• a reduction
• an enlargement
• a scale
• not proportional

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

• addition 
• subtraction 
• multiplication 
• division