we're doing this reflection thing. and 3 different questions, I have no clue how to do it. 1) reflection across the y-axis, 2) reflection across the x-axis. 3) reflection across y=1.

You basically need to reflect the coordinates that are given.

(Not sure if you're asking how to do it)

Step-by-step explanation:

For example:

(5,8) Reflect across the y-axis (-5,8)

(5,8) Reflect across the x-axis (5,-8)