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        The equation of a circle with center x=h and y=k and radius r, is: 
 
(x - h)^2 + (y - k)^2 = r^2.  Here I am using the symbol ^ to indicate exponentiation. 
 
In your example, h=-2, k=1, r=2.   
 
(x - -2)^2 + (y - 1)^2 = 2^2, or 
 
(x + 4)^2 + (y - 1)^2 = 4. 
 
You need to draw a graph of a circle with center (-2,1) and radius 2.
     
     
    
    
    
    
    
    
  
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