Expression 4: "g" Subscript, 1 , Baseline left parenthesis, "x" , right parenthesis equals "f" prime left parenthesis, 60 , right parenthesis positive "a" Subscript, "b" , Baseline left parenthesis, "x" minus 60 , right parenthesisg1x=f′60+abx−60
4
Expression 5: "t" Subscript, "m" "a" "x" , Baseline equals 60 minus StartFraction, "f" prime left parenthesis, 60 , right parenthesis Over "a" Subscript, "b" , Baseline , EndFractiontmax=60−f′60ab
equals=
113.3 3 5 6 6 8 1 5 6113.335668156
5
Expression 6: "g" left parenthesis, "t" Subscript, "m" "a" "x" , Baseline , right parenthesisgtmax