Expression 38: "f" left parenthesis, "x" , right parenthesisfx
38
Expression 39: polygon left parenthesis, "D" , "E" , "F" , right parenthesispolygonD,E,F
39
Expression 40: polygon left parenthesis, "A" , "E" , "D" , "F" , "E" , "B" , "C" , right parenthesispolygonA,E,D,F,E,B,C
40
Expression 41: "y" equals "f" prime left parenthesis, "D" Subscript, 1 , Baseline , right parenthesis left parenthesis, "x" minus "D" Subscript, 1 , Baseline , right parenthesis plus "f" left parenthesis, "D" Subscript, 1 , Baseline , right parenthesisy=f′D1x−D1+fD1