Expression 24: "y" equals "m" Subscript, 1 , Baseline left parenthesis, "x" minus "E" Subscript, 1 , Baseline , right parenthesisy=m1x−E1
24
Expression 25: "y" equals "m" Subscript, 2 , Baseline left parenthesis, "x" minus "B" Subscript, 1 , Baseline , right parenthesisy=m2x−B1
25
Expression 26: "m" Subscript, 1 , Baseline left parenthesis, "x" minus "E" Subscript, 1 , Baseline , right parenthesis equals "m" Subscript, 2 , Baseline left parenthesis, "x" minus "B" Subscript, 1 , Baseline , right parenthesism1x−E1=m2x−B1