1-3-1 wdfivijrenveiknefvefvvgr rg
        
             
        
        
        
D is a function  because  there are no repeated x values 
for example b is not a function because we have (0,-7) and (0,-9)
        
             
        
        
        
The equation of a line is mx+b
        
                    
             
        
        
        
We are asked in the problem to deterimne the point slope form that is y - y1  = m(x-x1),. Substituting, m = 3 and x1 = 2
Translating,
y + a = 3*(x-2). 
Ahnswer to this problem then is C. 
        
                    
             
        
        
        
First factor (x square -36), the answer will be (x+6)(x-6).
Second, cancel the x .
6x/ (x+6)(x-6) 
4x/(6)(-6)
4x/-36