Expression 2: "g" left parenthesis, "x" , right parenthesis equals "f" left parenthesis, 1 half "x" plus 2 , right parenthesisgx=f12x+2
2
Expression 3: "h" left parenthesis, "x" , right parenthesis equals "g" left parenthesis, "x" , right parenthesis minus "f" left parenthesis, "x" , right parenthesishx=gx−fx
3
Expression 4: "i" left parenthesis, "x" , right parenthesis equals "h" prime left parenthesis, "x" , right parenthesisix=h′x