Step 1 :\(A_1(4,2), B_1(0,-4)\)
Step 2 :\(A_2(-4,2), B_2(0,4)\)
Step 3 :\(A_3(4,-2), B_3(1,-4)\)
Step 4 :\(A_4(4,2), B_4(0,4)\)