Expresión 4: "y" equals "g" left parenthesis, "a" , right parenthesis left parenthesis, "x" minus "a" , right parenthesis plus "f" left parenthesis, "a" , right parenthesisy=gax−a+fa
4
Expresión 5: left parenthesis, "a" , "f" left parenthesis, "a" , right parenthesis , right parenthesisa,fa
5
Expresión 6: "y" equals negative "g" left parenthesis, "a" , right parenthesis to the negative 1st power left parenthesis, "x" minus "a" , right parenthesis plus "f" left parenthesis, "a" , right parenthesisy=−ga−1x−a+fa