Answer:
L' = (-1,1)
N' = (-1,4)
M' = (-4,2)
Step-by-step explanation:
Reflecting across y = x basically means switching the positions of x and y. In this case switching the coordinates.
L = (1,-1) and L' = (-1,1)
N = (4,-1) and N' = (-1,4)
M= (2,-4) and M' = (-4,2)
