The domain of the graph is less than or equal to 0.
        
             
        
        
        
You don't simplify rational numbers, but sometimes you can simplify a fraction.
The way to do that is to divide the top and bottom by their greatest common factor.
The greatest common factor of 57 and 69 is 3 .  When you divide the top and
bottom by 3 , you have  19/23 .  That's the simplest form of that particular fraction.
        
                    
             
        
        
        
Hello : 
<span>A. 5th degree polynomial </span>