Yes that is extremely accurate
        
                    
             
        
        
        
You can do this by completing the square on x and y terms:
  x^ - 10x + y^2 + 6y + 18 = 0
  (x - 5)^2 -25 + (y + 3)^2 - 9 + 18 = 0
  (x - 5)^2  + (y + 3)^2 = -18 + 9 + 25  =  16
so radius = sqrt16  = 4 answer
        
                    
             
        
        
        
The correct answer is x= -9. Hope this helps!!
        
                    
             
        
        
        
Answer:
2
Step-by-step explanation: