Dilations Area Perimeter

What are the coordinates for the center of dilation?

• (3, 0)

• (0, 0)

• (3, 1)

• (3, -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 r = 2.

• (2,4.5)

• (-8,-18)

• (8,18)

• (9,4)

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

• (-6, 1)

• (-3, -2)

• (1, -6)

• (-2, -3)

State the coordinates of the image of point B after a dilation with a scale factor of 2 and centered at point A.

• (-4,2)

• (-8,4)

• (-4,6)

• (-2,-2)

The red triangle has been dilated by a scale factor of 1/4 about the origin, which triangle is it's new image?

• green triangle 

• red triangle 

• black triangle

• none of these 

Did the image enlarge, reduce or none of the above?

• Enlarge

• Reduce

• None of the above

What are the coordinates for the center of dilation?

• (0, 0)

• (-3, -1)

• (-12, 6)

• (-3, -3)

Find the measure of x:

• 6

• 24

• 33

• 36

Dilate Point C by a scale factor of 3:

• (12,0)

• (12,12)

• (1, 2/3)

• (9, 6)

If a line segment has a length of 12 units and after a dilation the image length is 4 units, what was the scale factor?

• 3

• 1/3

• 8

• 16