<h3>
Answer is   -8</h3>
Work Shown:
y = -(2^x)
y = -(2^3) ... replace x with 3
y = -(2*2*2) ... expand out 2 cubed
y = -8
 
        
        
        
-4y = 8x
Divide both sides by -4
y = -2x
This is in the form of y = kx, where k is the constant of variation.
y = kx is the direct 
That means, k = -2. 
The constant of variation is B. -2.
        
                    
             
        
        
        
Answer:
 a= (1,4)
b=(4,2)
c=(2,6)
d=(2,-1)
Step-by-step explanation:
All I did was looked at the regions the points began and ended. I'm not 100% this is correct but I hope I helped!