What is the coordinate for L'after reflecting PFEL across the line y = x? * 1

A transformation of reflection across the line y=x can be written as:
[tex]P=(x,y)\longrightarrow P^{\prime}=(y,x)[/tex]The point L has the coordinates (-5, 2), so the transformed point L' will have the coordinates (2,-5).
Answer: L' = (2,-5)