27 lines
1.1 KiB
TeX
27 lines
1.1 KiB
TeX
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\begin{tikzpicture}
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% Frame
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\draw [thick, <->] (0,-4) -- (0,0) -- (9,0);
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% Vertical lines
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\draw (3,0) node[anchor=south] {1.1} -- (3,-4) ;
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\draw (6,0) node[anchor=south] {4.5} -- (6,-4) ;
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% Upper horizontal lines
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\draw [dashed] (0,-1) node [anchor=east] {$|4.5-c|$} -- (3,-1) node [midway, above, sloped] {$-c$} -- (6,-1);
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\draw [dashed] (0,-2) node [anchor=east] {$|c-1.1|$} -- (3,-2) node [midway, above, sloped] {$-c$};
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\draw (6,-1) -- (9,-1) node [midway, above, sloped] {$c$};
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\draw (3,-2) --(6,-2) node [midway, above, sloped] {$c$} -- (9,-2) ;
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% Points
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\node[circle,fill,inner sep=1.5pt] at (6,-1) {};
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\node[circle,fill,inner sep=1.5pt] at (3,-2) {};
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\node[circle,fill,inner sep=1.5pt] at (3,-3) {};
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\node[circle,fill,inner sep=1.5pt] at (6,-3) {};
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% Lower horizontal line
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\draw [dashed] (0,-3) node [anchor=east] {$|4.5-c| + |c-1.1|$} -- (3,-3) node [midway, above, sloped] {$-2c$};
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\draw (3,-3) -- (6,-3) node [midway, above, sloped] {$0$};
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\draw (6,-3) -- (9,-3) node [midway, above, sloped] {$2c$};
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\end{tikzpicture}
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