Question

Can yall help me out with this
8. p to p' (2, -6) for the glide reflection where the translation is (x, y) to (x+2, y-2) and the line of reflection is y= -x. what are the coordinates of P?
(11, -3)
(4, 0)
(-11,3)
(-4, 0)

Answer 1

do you have a graph?

Answer 2

no

Answer 3

um well lets see

Answer 4

here ill get you a gragh

Answer 5

try it with this

Answer 6

@Bghostrider2

Answer 7

sorry chrome crashed

Answer 8

and ok

Answer 9

dude i have know idea how to do the problem

Answer 10

hold on gonna switch to explorer

Answer 11

okay well um give me just 1 minute and ill get back to you

Answer 12

okay

Answer 13

alright im back

Answer 14

okay so first try and graph the problem on the graph paper

Answer 15

my main problem is the y=-x...I don't know hw to change the coordinates with it

Answer 16

when you do go ahead and tell me what point on the graph reflects (2,-6)

Answer 17

no put all the points on the graph and then see what one reflects that problem

Answer 18

there are only 2 points

Answer 19

even A,B,C,and D put those on the graph as well

Answer 20

ok I put them on the graph

Answer 21

now what one reflects the point (2,-6)

Answer 22

none

Answer 23

okay then what i would do is put the points in the equation and see what you get

Answer 24

okay well im also sort of confused lets see if we can find some one that will know how to set up the equation

Answer 25

would it be option A

Answer 26

uh yes actualy i just set it up and i got a also

Answer 27

well....it wasn't a

Answer 28

so we started at a point (x,y) and we want to end up at (2,-6)
Well we can go backwards from that point back through operations
so let's back through the reflection over y=-x
that is if you have (x,y) then you will have (-y,-x) if you reflect it over that line.
So when you reflect (2,-6) about y=-x what point do you get?
Once you find that point we have to take back through the translation to get where you started at.

Answer 29

end point (2,-6)
after reflection through y=-x we have (6,-2)
I will do the reflection part for you
now we need to figure out what is x and what is y when (6,-2)=(x+2,y-2)
you just have two equations to solve now

Answer 30

it was b

Answer 31

exactly right
good job

Answer 32

since 6=x+2 gives x=4
and -2=y-2 gives y=0