Question

What would the transformed coordinates be if A(6,9), B(-1,3) and C(-5,-3) were reflected over the line y=-x

Answer 1

@ganeshie8

Answer 2

@wolf1728

Answer 3

@Photon336

Answer 4

@jabez177

Answer 5

@inkyvoyd

Answer 6

I don't know about these transformed coordinates problems. :-(

Answer 7

Thats okay thanks anyways (:

Answer 8

need help !

Answer 9

We start off with these points. See the link to see the image.

http://prntscr.com/b84r4d

Answer 10

okay

Answer 11

I used geogebra to plot the points and find their reflections. Reflect those points over the line y = -x to get `A'`, `B'` and `C'`

`A` reflects to get `A'`
`B` reflects to get `B'`
`C` reflects to get `C'`

See link

http://prntscr.com/b84rv0

Notice how the x and y coordinates swap places and how we have the coordinates change in sign (positive to negative or vice versa)
eg:
(-3,1) ----> (-1,3)

Answer 12

so they are changing signs ?

Answer 13

yes, for instance point `A` is at (6,9) in quadrant 1

it reflects over y = -x to land on point `A'` which is at (-9,-6) now in quadrant 3

the x and y coordinates switched places and switched signs too

Answer 14

Is it like that ??

Answer 15

oh okay thanks

Answer 16

B = (-1,3) ----> B ' = (-3,1)

Answer 17

no problem