Answer:
B) A’(-1,2) B’(-1,4) and C’(-3,2)
Step-by-step explanation:
When we reflected trougle trough line y=x, coordinates of x become coordinates of y, and coordinate of y become coordinate of x, for every point of triangle.
A(2,-1) then A’(-1,2)
B(4,-1) then B’(-1,4)
C(2,-3) then C’(-3,2)