Question

Medal for help please!

Answer 1

p->p-> (-2,-6) for the glide reflection where the translation is (x,y)->(x,y,-1) and the line of reflection is x=1. What are the coordinates of P?
(4,-5)
(-2,-7)
(-2,-5)
(4,-6)

Answer 2

No idea XD

Answer 3

Ugh.

Answer 4

can you fix your typo:
the translation is (x,y)->(x,y,-1)

do you really mean (x,y) -> (x, y-1) ?

Answer 5

Yes that what it says

Answer 6

If so, I would first do the "translation" using the rule
(x,y) -> (x, y-1)
(-2,-6)
what do you get ?

Answer 7

im not sure how to do that. Put -2 in x?

Answer 8

(x,y) -> (x,y-1) is "short-hand" for
keep x the same (x --> x)
and y --> y-1 (the "new" y is y-1 )
(that is assuming the rule is really (x,y) -> (x,y-1)
because (x,y)->(x,y,-1) does not make sense

Answer 9

Oh my bad i did do it wrong, its (x,y)-> (x,y-1)

Answer 10

do you see what you get using that rule on your point (-2,-6) ?

Answer 11

(-2, -6 -1 ) which simplifies to (-2,-7)
if you reflect it about x=1, the new x value is "on the other side" of the line x=1

Answer 12

Okay.. i somewhat understand..

Answer 13

It looks like this: A is the point (-2,-7) and A' is A reflected about x=1

Answer 14

But sadly, none of your choices show (4,-7) as the answer.

Answer 15

just 4,-6..

Answer 16

unless you accidentally typed in the wrong numbers for the question (or the choices), this question has a problem. You should ask your teacher about this one.
Because if we start at (-2,-6) and follow the "rules", we will end up at (4,-7)

Answer 17

yeah thats exactly how the problem is..