Determining Scale Factor in Dilations

What is the scale factor between PQRS to P'Q'R'S'?

• 4

• 2

• 1/2

What is the scale factor between QRS to Q'R'S'?

• 20

• 4

• 5

What is the scale factor between RSTU to R'S'T'U'?

• 12

• 4

• 1/3

What is the scale factor between EFGH to E'F'G'H'?

• 1/2

• 4

• 2

What is the scale factor between ABCDE to A'B'C'D'E'?

• 6

• 1/3

• 2

Is this an dilation an enlargement or reduction from ABCD to A'B'C'D'?

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

• 1/2

• 7/3

• 2

• 10/3

The point (8, 12) was dilated to become point (2, 3). What is the scale factor?

• ½

• ¼

• 4

• 2

In a dilation what mathematical operation is used with the scale factor?

• addition 

• subtraction 

• multiplication 

• division 

If the blue polygon is the original image, find the scale factor and determine if it is a reduction or enlargement.

• It's a reduction; the scale factor is 2.

• It's an enlargement; the scale factor is 2.

• It's an enlargement; the scale factor is 1/2.

• It's a reduction; the scale factor is 1/2.