Expression 33: "m" Subscript, 2 , Baseline equals tangent left parenthesis, 180 minus left parenthesis, 90 minus StartFraction, "B" Subscript, "O" "E" , Baseline Over 2 , EndFraction , right parenthesis , right parenthesism2=tan180−90−BOE2
33
Expression 34: "y" equals "m" Subscript, 1 , Baseline left parenthesis, "x" minus "A" Subscript, 1 , Baseline , right parenthesisy=m1x−A1
34
Expression 35: "y" equals "m" Subscript, 2 , Baseline left parenthesis, "x" minus "B" Subscript, 1 , Baseline , right parenthesisy=m2x−B1
35
Expression 36: "m" Subscript, 1 , Baseline left parenthesis, "x" minus "A" Subscript, 1 , Baseline , right parenthesis equals "m" Subscript, 2 , Baseline left parenthesis, "x" minus "B" Subscript, 1 , Baseline , right parenthesism1x−A1=m2x−B1
36
Expression 37: "m" Subscript, 1 , Baseline "x" minus "m" Subscript, 1 , Baseline "A" Subscript, 1 , Baseline equals "m" Subscript, 2 , Baseline "x" minus "m" Subscript, 2 , Baseline "B" Subscript, 1 , Baselinem1x−m1A1=m2x−m2B1
37
Expression 38: "m" Subscript, 1 , Baseline "x" minus "m" Subscript, 2 , Baseline "x" equals "m" Subscript, 1 , Baseline "A" Subscript, 1 , Baseline minus "m" Subscript, 2 , Baseline "B" Subscript, 1 , Baselinem1x−m2x=m1A1−m2B1
38
Expression 39: left parenthesis, "m" Subscript, 1 , Baseline minus "m" Subscript, 2 , Baseline , right parenthesis "D" Subscript, 1 , Baseline equals "m" Subscript, 1 , Baseline "A" Subscript, 1 , Baseline minus "m" Subscript, 2 , Baseline "B" Subscript, 1 , Baselinem1−m2D1=m1A1−m2B1