Dilation

Front

What is a scale factor in dilation?

Back

A scale factor is a number that scales, or multiplies, the dimensions of a figure during dilation. It determines how much larger or smaller the figure will become.

Front

What is the general rule for dilation of a point (x, y) by a scale factor k?

Back

The general rule for dilation is (x, y) --> (kx, ky), where k is the scale factor.

Front

What does it mean for a dilation to be an enlargement?

Back

An enlargement occurs when the scale factor is greater than 1, resulting in a figure that is larger than the original.

Front

What does it mean for a dilation to be a reduction?

Back

A reduction occurs when the scale factor is between 0 and 1, resulting in a figure that is smaller than the original.

Front

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

Back

All dimensions of the figure are multiplied by 2, making the figure twice as large.

Front

What is the center of dilation?

Back

The center of dilation is a fixed point in the plane about which the figure is enlarged or reduced.

Front

How do you find the coordinates of a dilated image given a scale factor and original coordinates?

Back

Multiply each coordinate of the original figure by the scale factor to find the coordinates of the dilated image.

Front

What is the difference between the original figure and its image after dilation?

Back

The original figure is the pre-image, while the image is the resulting figure after the dilation transformation.

Front

Is the statement 'The image is the shape before the dilation' true or false?

Back

False. The image is the shape after the dilation.

Front

What happens to the angles of a figure during dilation?

Back

The angles of a figure remain unchanged during dilation.