Dilations

Front

What is the definition of an image in the context of transformations?

Back

The figure after a transformation has occurred.

Front

What is the coordinate of the image of the point B (4,9) under a dilation with center at the origin and scale factor r = 2?

Back

(8,18)

Front

What happens to the size of a figure when it undergoes a dilation with a scale factor greater than 1?

Back

The figure enlarges.

Front

What happens to the size of a figure when it undergoes a dilation with a scale factor less than 1?

Back

The figure reduces.

Front

What is a dilation in geometric terms?

Back

A transformation that produces either an enlargement or a reduction of a figure.

Front

What is the relationship between similar figures in terms of shape and size?

Back

Similar figures have the same shape but different sizes.

Front

If a dilation has a scale factor of 1, what is the effect on the figure?

Back

The figure remains unchanged.

Front

What is the center of dilation?

Back

The fixed point in a dilation from which all points are expanded or contracted.

Front

How do you determine the coordinates of an image after dilation?

Back

Multiply the original coordinates by the scale factor.

Front

What is the scale factor in a dilation?

Back

A number that describes how much the figure is enlarged or reduced.