Dilation and Transformation Concepts

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.

Front

What is the scale factor in the transformation (x, y) → (3/4x, 3/4y)?

Back

3/4

Front

What do we call the figure after a transformation has occurred?

Back

Image

Front

What do we call the original figure before a transformation?

Back

Pre-image

Front

When the scale factor of a dilation is less than one, what type of dilation is it?

Back

Reduction

Front

When the scale factor of a dilation is greater than one, what type of dilation is it?

Back

Enlargement

Front

If a figure is dilated by a scale factor of 2, what happens to its dimensions?

Back

The dimensions of the figure are doubled.

Front

What are the coordinates of the image A(3,3) after dilation by a scale factor of 3?

Back

A'(9,9)

Front

What is the effect of a scale factor of 1 on a figure?

Back

The figure remains unchanged.

Front

If a dilation has a scale factor of 1/2, what happens to the area of the figure?

Back

The area is reduced to 1/4 of the original area.