26 lines
522 B
TeX
26 lines
522 B
TeX
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\begin{tikzpicture}
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\begin{axis}[
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xlabel = $x$, ylabel = $y$,
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width = 10cm, height=10cm,
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axis lines = middle,
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grid,
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xmin=-1.5, xmax=5.5,
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ymin=-2.5, ymax=4.5,
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legend pos=outer north east
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]
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\addplot+ [
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no marks,
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domain = 0:4,
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]{x-1};
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\addlegendentry{$y=x-1$}
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\addplot+ [
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no marks,
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domain = 0:4,
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]{3-x};
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\addlegendentry{$y=3-x$}
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\node[label={90:{(2,\ 1)}},circle,fill,inner sep=2pt] at (axis cs:2,1) {};
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\end{axis}
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\end{tikzpicture}
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