Question

Line segment CD is shown on a coordinate grid:

(ill put attachment below)

The line segment is rotated 90 degrees counterclockwise about the origin to form C'D'. Which statement describes C'D'?
C'D' and CD are equal in length.
C'D' is parallel to CD.
C'D' is half the length of CD.
C'D' is greater than twice the length of CD.

Answer 1

better yet here's the rule
(x,y) --> (-y,x) when rotating 90 degrees counterclockwise

Answer 2

apply that rule to the coordinates of the segment and you'll get your answer.

Answer 3

would it be A?

Answer 4

i didn't see you segment did you post it?

Answer 5

what are the coordinates or C and D?

Answer 6

or = of

Answer 7

its -1 and 1 for D and 1,2 for C

Answer 8

C(1,2) so ---> C'(-2,1)
D(-1,1) so --> D'(-1,-1)

Answer 9

Yes it is A

Answer 10

ok thank you!

Answer 11

your welcome