Dilations

Front

What is the algebraic notation for a dilation with a scale factor of 3?

Back

(x, y) goes to (3x, 3y)

Front

What do we call images/figures that have the SAME SIZE and the SAME SHAPE?

Back

Congruent

Front

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

Back

True

Front

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

Back

True

Front

What is the relationship between pre-image and image in a dilation?

Back

Pre-image & image are similar; Orientation is preserved.

Front

What happens to the size of a figure when the scale factor is greater than 1?

Back

The figure enlarges.

Front

What happens to the size of a figure when the scale factor is less than 1?

Back

The figure reduces.

Front

If a figure is dilated by a scale factor of 1, what happens to the figure?

Back

The figure remains the same size.

Front

What is the scale factor in a dilation?

Back

The ratio of the size of the image to the size of the pre-image.

Front

If the scale factor is 1/2, how does the image compare to the pre-image?

Back

The image is half the size of the pre-image.