A, plug in 12 for x and -7 for y to get you’re answer
        
             
        
        
        
You know that the average house price is $250,000 dollars
Median means medium
        
             
        
        
        
We can start from the given line's coefficients and translate the line from the origin to the given point.
  4(x -(-2)) -(y -3) = 0
  4x +8 -y +3 = 0
The equation of the desired line is ...
  4x -y = -11
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For standard form line ax+by=c, any parallel line will have only a different value of c. For c=0, the line goes through the origin (0, 0). To make it go through point (h, k) we can write it as 
  a(x-h) +b(y-k) = 0
which is completely equivalent to
  ax +by = ah +bk
 
        
        
        
You can use elimination to solve systems of equations with 3 equations. I know how to solve systems of equatons with 3 equations, but I use a different process, I don't know how to use the elimination method.
        
                    
             
        
        
        
I'm pretty sure that you answered it correctly. 10-U