Question

What is the reflection of point P(-1, 6) across the line y = x?


P(6, -1)
P(-6, -1)
P(-6, 1)
P(6, 1)

Answer 1

-1 in of which axis ??

Answer 2

im not sure that's all it
says

Answer 3

Reflection about y=x,
(x,y) -> (y,x)
That is to say, x and y coordinates are switched after reflection.

Answer 4

so it would be -6 , 1 ?

Answer 5

Remember that the negative sign is part of the coordinates.
For example, (-1,6) means the x-coordinate is -1, and y-coordinate is 6.

Answer 6

then 6 , -1 ?

Answer 7

That is correct!

Answer 8

thank you! (:

Answer 9

You're welcome!