Which graph shows a translation of the function, , down four units?

coordinate plane showing graph of function with slope slowly increasing from about negative ten, zero to zero, seven, then rapidly increasing

coordinate plane showing graph of function with slope slowly increasing from about negative ten, zero to zero, four, then rapidly increasing

coordinate plane showing graph of function with slope slowly increasing from about negative ten, zero to zero, two, then rapidly increasing

coordinate plane showing graph of function with slope

Question

Which graph shows a translation of the function,   , down four units?
		
   coordinate plane showing graph of function with slope slowly increasing from about negative ten, zero to zero, seven, then rapidly increasing       
		
   coordinate plane showing graph of function with slope slowly increasing from about negative ten, zero to zero, four, then rapidly increasing       
		
   coordinate plane showing graph of function with slope slowly increasing from about negative ten, zero to zero, two, then rapidly increasing       
		
   coordinate plane showing graph of function with slope