Dilation Scale Factor

Quadrilateral S'T'U'V' is a dilation of quadrilateral STUV, with the origin as the center of dilation.  Which of the following is the scale factor used to create quadrilateral S'T'U'V'?

Quadrilateral A'B'C'D' is a dilation of quadrilateral ABCD, with the origin as the center of dilation. Which of the following is the appropriate algebraic representation of the dilation?

Polygon A'B'C'D'E' is a dilation of polygon ABCDE, with the origin as the center of dilation.  Which of the following is the scale factor that was used to create the dilation?

If the scale factor is less than one, the new figure will be

• an enlargement

• a reduction

• a scale factor

• bigger

If the scale factor is greater than one, the new figure will be

• reduction

• enlargement

• scale

• not proportional

Scale Factor of 5 is _________________ .

• Reduction

• Enlargement

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

• ½

• ¼

• 4

• 2

What is the scale factor from ΔDEF to ΔABC?

• 2

• 3/2

• 2/3

• 1/2

State the coordinate of the image of the given point B (4,9) under a dilation with center at the origin with the given scale factor of 2.

• B' (2 , 4.5)

• B' (-8 ,-18)

• B' (8 ,18)

• B' (9 ,4)