Dilations and Scale Factor

Front

What is the scale factor from the small shape to the big shape?

Back

The scale factor is the number that describes how much larger or smaller a figure is compared to another figure. In this case, the scale factor is 2.

Front

A dilation is which of the following?

Back

A dilation can be either an enlargement or a reduction.

Front

_________ ________ is the number you multiply by the sides to create a similar figure.

Back

Scale Factor.

Front

How do you write the algebraic notation when the scale factor is 3?

Back

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

Front

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

Back

Scale factor.

Front

What does a scale factor greater than 1 indicate?

Back

It indicates an enlargement of the figure.

Front

What does a scale factor less than 1 indicate?

Back

It indicates a reduction of the figure.

Front

If the original shape has a length of 4 units and the scale factor is 2, what is the length of the new shape?

Back

The new length is 8 units (4 units * 2).

Front

If the original shape has a length of 10 units and the scale factor is 1/2, what is the length of the new shape?

Back

The new length is 5 units (10 units * 1/2).

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.