表达式17: "y" equals "m" Subscript, 1 , Baseline left parenthesis, "x" minus "A" Subscript, 1 , Baseline , right parenthesis plus "A" Subscript, 2 , Baseliney=m1x−A1+A2
17
表达式18: "y" equals "m" Subscript, 2 , Baseline left parenthesis, "x" minus "B" Subscript, 1 , Baseline , right parenthesisy=m2x−B1
18
表达式19: "m" Subscript, 1 , Baseline left parenthesis, "D" Subscript, 1 , Baseline minus "A" Subscript, 1 , Baseline , right parenthesis plus "A" Subscript, 2 , Baseline tilde "m" Subscript, 2 , Baseline left parenthesis, "D" Subscript, 1 , Baseline minus "B" Subscript, 1 , Baseline , right parenthesism1D1−A1+A2~m2D1−B1
19
表达式20: "D" Subscript, 2 , Baseline equals "m" Subscript, 2 , Baseline left parenthesis, "D" Subscript, 1 , Baseline minus "B" Subscript, 1 , Baseline , right parenthesisD2=m2D1−B1
equals=
3.4 6 4 1 0 1 6 1 5 1 43.46410161514
20
Graphs
对学生隐藏该文件夹。
21
表达式22: polygon left parenthesis, "A" , "B" , "D" , right parenthesispolygonA,B,D
22
表达式23: polygon left parenthesis, "C" , "B" , "D" , right parenthesispolygonC,B,D
23
表达式24: polygon left parenthesis, "A" , "B" , "C" , "D" , right parenthesispolygonA,B,C,D
24
表达式25: polygon left parenthesis, "A" , "C" , right parenthesispolygonA,C
25
表达式26: polygon left parenthesis, "B" , "D" , right parenthesispolygonB,D