Dilations

Front

What is the scale factor in dilations?

Back

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

Front

Dilate Point B (3, 2) by a scale factor of 2. What are the new coordinates?

Back

(6, 4)

Front

What does it mean to dilate a figure?

Back

To dilate a figure means to make it larger or smaller while maintaining its shape.

Front

What is the center of dilation?

Back

The center of dilation is the fixed point in the plane about which all points are expanded or contracted.

Front

If the scale factor is greater than 1, what type of dilation is it?

Back

Enlargement.

Front

If the scale factor is between 0 and 1, what type of dilation is it?

Back

Reduction.

Front

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

Back

The figure remains the same size; it is neither enlarged nor reduced.

Front

Does the image show a dilation? (Show an image of a dilated figure)

Back

Yes.

Front

If a triangle has vertices at (1, 2), (3, 4), and (5, 6), what are the new vertices after a dilation with a scale factor of 1/2?

Back

(0.5, 1), (1.5, 2), (2.5, 3)