Dilations #2 8.10D

Front

What mathematical operation is used with the scale factor in a dilation?

Back

Multiplication

Front

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

Back

B' (8, 18)

Front

True or False: A dilation always produces a congruent figure.

Back

False

Front

True or False: When the scale factor of a dilation is less than one, the dilation is a reduction.

Back

True

Front

True or False: When a dilation has a scale factor greater than one, the dilation is an enlargement.

Back

True

Front

What is a dilation in geometry?

Back

A transformation that alters the size of a figure but not its shape.

Front

What is the scale factor in a dilation?

Back

The ratio of the size of the image to the size of the original figure.

Front

If the scale factor is 1, what happens to the figure during dilation?

Back

The figure remains unchanged.

Front

What happens to the coordinates of a point (x, y) under a dilation with scale factor k?

Back

The new coordinates are (kx, ky).

Front

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

Back

It reduces the size of the figure.