Expression 4: "x" equals negative 1 left brace, 0 greater than or equal to "y" greater than or equal to "f" left parenthesis, negative 1 , right parenthesis , right bracex=−10≥y≥f−1
4
Expression 5: "f" prime left parenthesis, negative 1 , right parenthesis times left parenthesis, "x" plus 1 , right parenthesis plus "f" left parenthesis, negative 1 , right parenthesisf′−1·x+1+f−1
5
Expression 6:
6
Expression 7: "x" equals 1 left brace, 0 less than or equal to "y" less than or equal to "f" left parenthesis, 1 , right parenthesis , right bracex=10≤y≤f1