Expression 5: "x" times "y" Subscript, 1 , Baseline left bracket, 2 , right bracket left brace, 0 less than or equal to "x" less than "c" , right bracex·y120≤x<c
5
Expression 6: StartFraction, "x" Subscript, 1 , Baseline left bracket, 1 , right bracket "y" Subscript, 1 , Baseline left bracket, 1 , right bracket minus "x" Subscript, 1 , Baseline left bracket, 2 , right bracket "y" Subscript, 1 , Baseline left bracket, 2 , right bracket Over "x" Subscript, 1 , Baseline left bracket, 1 , right bracket minus "x" Subscript, 1 , Baseline left bracket, 2 , right bracket , EndFraction "x" plus "x" Subscript, 1 , Baseline left bracket, 1 , right bracket times "y" Subscript, 1 , Baseline left bracket, 1 , right bracket minus StartFraction, "x" Subscript, 1 , Baseline left bracket, 1 , right bracket "y" Subscript, 1 , Baseline left bracket, 1 , right bracket minus "x" Subscript, 1 , Baseline left bracket, 2 , right bracket "y" Subscript, 1 , Baseline left bracket, 2 , right bracket Over "x" Subscript, 1 , Baseline left bracket, 1 , right bracket minus "x" Subscript, 1 , Baseline left bracket, 2 , right bracket , EndFraction times "x" Subscript, 1 , Baseline left bracket, 1 , right bracket left brace, "c" less than or equal to "x" less than or equal to StartFraction, "c" Over 0.5 , EndFraction , right bracex11y11−x12y12x11−x12x+x11·y11−x11y11−x12y12x11−x12·x11c≤x≤c0.5
6
Expression 7: "x" times "y" Subscript, 1 , Baseline left bracket, 1 , right bracket left brace, StartFraction, "c" Over 0.5 , EndFraction less than "x" , right bracex·y11c0.5<x
