表达式6: "y" minus "f" left parenthesis, "x" Subscript, 1 , Baseline , right parenthesis equals "m" left parenthesis, "x" minus "x" Subscript, 1 , Baseline , right parenthesisy−fx1=mx−x1
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隐藏 标签 left parenthesis, "x" Subscript, 1 , Baseline , "f" left parenthesis, "x" Subscript, 1 , Baseline , right parenthesis , right parenthesisx1,fx1
标签
equals=
left parenthesis, 0 , 0 , right parenthesis0,0
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隐藏 标签 left parenthesis, "x" Subscript, 2 , Baseline , "f" left parenthesis, "x" Subscript, 2 , Baseline , right parenthesis , right parenthesisx2,fx2
标签
equals=
left parenthesis, 1.9 8 , 3.9 2 0 4 , right parenthesis1.98,3.9204
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表达式9: "m" equals StartFraction, "f" left parenthesis, "x" Subscript, 2 , Baseline , right parenthesis minus "f" left parenthesis, "x" Subscript, 1 , Baseline , right parenthesis Over "x" Subscript, 2 , Baseline minus "x" Subscript, 1 , Baseline , EndFractionm=fx2−fx1x2−x1
