Dilations Cfu

Dilation rules use ______________ to change the ___________ of a shape. 

• addition; location

• division; direction

• subtraction; orientation

• multiplication; size

In this figure, triangle TRS is the ​ (a)   , triangle T'R'S' is the ​ (b)   and a(n) ​ (c)   occurred.

• pre-image

• image

• enlargement

• reduction

• spin

• flip

In this figure, triangle ABC is the ​ (a)   and triangle A'B'C' is the ​ (b)   . The scale factor for this dilation is ​ (c)   . A(n) ​ (d)   occurred.

• pre-image

• image

• 2

• reduction

• enlargement

• None of the above

• 1/2

Quadrilateral NDPM was dilated to quadrilateral N'D'P'M'. What was the scale factor for this dilation?

• 2

• 3

• 1/3

• 1/2

If triangle ABC was dilated by a scale factor of 3, with the origin as the center of dilation, what would the coordinates of B' be?

• (12,0)

• (12,12)

• (4,3)

• (0,12)

What is the correct scale factor for this dilation?

• 2.5

• 1.5

• 3.5

• 4

State the coordinates of point C after a dilation with a scale factor of 1/2 and center of dilation at point P.

• (-6, 1)

• (-3, -2)

• (1, -6)

• (-2, -3)

State the coordinates of point B after a dilation, with the center of dilation at the origin, and a scale factor of 1/2.

• (1.5,-4)

• (-1.5,1)

• (-1,-1.5)

• (-2,-2)

State the coordinates of point A after a dilation, with the center of dilation at (0,0), and a scale factor of 1/2.

• (2,2)

• (8,8)

• (0,12)

• (4,12)

The red triangle has been dilated by a scale factor of 1/4, with the center of dilation at (0,0), which triangle is it's new image? 

• green triangle 

• red triangle 

• black triangle

• none of these