Expression 19: "y" equals "m" Subscript, 2 , Baseline left parenthesis, "x" minus "A" Subscript, 1 , Baseline , right parenthesisy=m2x−A1
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Expression 20: "m" Subscript, 1 , Baseline "x" equals "m" Subscript, 2 , Baseline left parenthesis, "x" minus "A" Subscript, 1 , Baseline , right parenthesism1x=m2x−A1
Expression 22: "C" Subscript, 2 , Baseline equals "m" Subscript, 2 , Baseline left parenthesis, "C" Subscript, 1 , Baseline minus "A" Subscript, 1 , Baseline , right parenthesisC2=m2C1−A1
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Expression 23: "D" Subscript, 1 , Baseline equals "A" Subscript, 1 , Baseline plus "A" Subscript, "D" , Baseline cosine left parenthesis, 180 plus "B" Subscript, "A" "D" , Baseline , right parenthesisD1=A1+ADcos180+BAD
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Expression 24: "D" Subscript, 2 , Baseline equals "A" Subscript, 2 , Baseline plus "A" Subscript, "D" , Baseline sine left parenthesis, 180 plus "B" Subscript, "A" "D" , Baseline , right parenthesisD2=A2+ADsin180+BAD
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Graphs
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Expression 26: polygon left parenthesis, "A" , "B" , right parenthesispolygonA,B
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Expression 27: polygon left parenthesis, "C" , "D" , right parenthesispolygonC,D
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Expression 28: polygon left parenthesis, "A" , "C" , "B" , "D" , right parenthesispolygonA,C,B,D
