Question

help with transformation

Answer 1

let me see your file.

Answer 2

about the line y = x
because two of the coordinates lie on the line itself and other two are mirror images of each other about the line y = x

Answer 3

okay

Answer 4

what does that mean?

Answer 5

i think D.

Answer 6

im thinking d too

Answer 7

yes because it will rotate due same points on x-axis.

Answer 8

well D won`t work because rotation by 180 would result in reflection about y axis

Answer 9

then whats the answer?

Answer 10

No it doesn't, @harsimran_hs4
Consider rotating the line y=x 180 degrees wrt the origin, you don't get the line y = -x

Answer 11

im thinking d makes sense

Answer 12

well does it?

Answer 13

I vote yes :)

Answer 14

well then tell me what is the reflection of point (-3,1) about line y = x ?

Answer 15

ill notify you if you are correct or not okay?

Answer 16

Easier to see that the reflection of the point (3,2) about the line y=x is (2,3) which is not on the parallelogram.

Answer 17

well point is (-3, 1) not (3, 2) i am considering

Answer 18

Well, now that you mention it, the image is (1,-3)

Answer 19

(-3, -3) and (3,3) lie on the line so after reflection they will also lie on the line and remain where they were and (-3, 1) and (3, -1) interchange their position

Answer 20

But if it's to be the reflection with respect to the line y=x, then the image of each and every point must still be on the parallelogram, and the image of (-3,1), which is (1,-3) is not on the parallelogram.

Answer 21

agreed
my bad!! but how does d come out to be the solution?

Answer 22

Because A, B, and C were wrong? lol

Answer 23

LOL!! expected some good arguments tough

Answer 24

I'm really not good at explaining geometric concepts, these things just come to me sorta instinctively :(

Answer 25

cool got hold of it ......
FINALLY I AGREE D IS RIGHT!!