Answer:
-1
Step-by-step explanation:
 
        
             
        
        
        
Reasons for what, I cant see anything?
        
             
        
        
        
Answer:
I believe it is 252 correct me if I'm wrong
 
        
                    
             
        
        
        
Answer: A'=(1, 3); B'=(-3, 4);C'=(3, 0); D'=(-2, 5)
You can check the PNG attached as well.
Step-by-step explanation:
You need to represent the symmetry of every given points respet to the line

In that case, the line beeing paralell to the x- axis, x- value of the symmetry is the same of the given point and y = 2 is the middle between both points.
Point A(1, 1)

Point B(-3, 0)

Point C(3, 4)

Point D(-2, -1)

 
        
             
        
        
        
First factor the numerator
b^2-6b+8/b-4  * b+8/b-2
u will get
(b-2)(b-4)/(b-4)*(b-2)*b+8
those will cancel out each other will left only
b+8<span />