Question

Triangle QRS is dilated according to the rule DO,2 (x,y).

What is true about the image △Q'R'S'? Check all that apply.

DO,2 (x,y) = (2x, 2y)
Side Q'S' lies on a line with a slope of -1.
QR is longer than Q'R'.
The vertices of the image are closer to the origin than those of the pre-image.
The distance from Q' to the origin is twice the distance from Q to the origin.

Answer 1

Triangle QRS is dilated according to the rule DO,2 (x,y).

What is true about the image △Q'R'S'? Check all that apply.

DO,2 (x,y) = (2x, 2y)

Side Q'S' lies on a line with a slope of -1.

QR is longer than Q'R'.

The vertices of the image are closer to the origin than those of the pre-image.

The distance from Q' to the origin is twice the distance from Q to the origin.

i am assuming the ones in bold letters are right.

Answer 2

I found the correct image that accompanies this problem and edited it with my answers.. Pls. see attachment.

Based on the attachment, the correct statements are:

1) DO,2 (x,y) = (2x, 2y)
2) Side Q'S' lies on a line with a slope of -1.
Q'(-6,6) S'(-2,2)
m = y1 - y2 / x1 - x2
m = 6 - 2 / -6 - (-2)
m = 4 / -4
m = -1
5) The distance from Q' to the origin is twice the distance from Q to the origin.