Dilations

Question 1

The coordinates of L' in the image are .

Revolt · Accepted Answer

C: (–1, 2)

Question 2

Given the pre-image ABCD and the image after a dilation, A'B'C'D', what is true about the polygons? Check all that apply.

Revolt · Accepted Answer

A: The length AB is 2.; B: The length A'B' is 3.; D: The scale factor is .

Question 3

Given the dilation rule DO,1/3 (x, y) → and the image S'T'U'V', what are the coordinates of vertex V of the pre-image?

Revolt · Accepted Answer

D: (0, 3)

Question 4

The dilation DO,3 (x, y) → (3x, 3y) is performed on the pre-image △ABC to make a similar triangle. Which statements are true? Check all that apply.

Revolt · Accepted Answer

A: ∠A corresponds to ∠A'.; B: ∠A'AC' corresponds to ∠B.; C: CB corresponds to C'A.; E: △ABC ~ △A'AC'.

Question 5

The distance in the x-coordinates from A(–2, 2) to the center of dilation F(1, 1) is unit(s).

Revolt · Accepted Answer

C: 3

Question 6

The coordinates of M' in the image are .

Revolt · Accepted Answer

A: (1, 2)

Question 7

The distance in the y-coordinates from A(–2, 2) to the center of dilation F(1, 1) is unit(s).

Revolt · Accepted Answer

C: 1

Question 8

The length, L'M', is .

Revolt · Accepted Answer

B: 2

Question 9

The vertex A' of the image is .

Revolt · Accepted Answer

A: (–8, 4)

Question 10

The slope of the original segment and dilated segment are .

Revolt · Accepted Answer

D: both zero

Dilations Answers