I think the right anser would be (a)
        
                    
             
        
        
        
Answer:
-2
Step-by-step explanation:
The equation of a line in slope intercept form is
y = mx +b where m is the slope and b is the y intercept
y = -2x+4
The slope is -2 and the y intercept is 4
 
        
             
        
        
        
Answer:
a
Step-by-step explanation:
y= 1/2 ^(x+4)
 
        
             
        
        
        
The answer is 128
hope that helps!