Marisa says that reflecting a point across the x axis and then reflecting its image across the y-axis will produce the same final image as just reflecting the original point across the line y equals x is this true?

Answer 1

not in any way.
reflections
in x-axis: (x,y) -> (x,-y)
in y-axis: (x,y) -> (-x,y)
so, together: (x,y) -> (x,-y) -> (-x,-y)

in y=x: (x,y) -> (y,x)

so, can you find the single reflection that is equivalent?

Answer 2

No my teacher didn't teach us this just gave it to us for homework