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- \begin{tikzpicture}
- \begin{axis}[
- legend pos=south west,
- axis x line=middle,
- axis y line=middle,
- grid = major,
- grid style={dashed, gray!30},
- xmin=-1, % start the diagram at this x-coordinate
- xmax= 6, % end the diagram at this x-coordinate
- ymin=-0.25, % start the diagram at this y-coordinate
- ymax= 2.25, % end the diagram at this y-coordinate
- axis background/.style={fill=white},
- xlabel=$x$,
- ylabel=$y$,
- tick align=outside,
- minor tick num=-3,
- enlargelimits=true,
- tension=0.08]
- \addplot[domain=0:1, red, thick,samples=20] {0.5*x*x};
- \addplot[domain=1:2, green, thick,samples=20] {x-0.5};
- \addplot[domain=2:3, blue, thick,samples=500] {-0.5*(x-2)*(x-2)+x-0.5};
- \addplot[domain=3:5, purple, thick,samples=20] {5-x};
- \addplot[domain=5:7, orange, thick,samples=3] {0};
- \addplot[domain=-3:0, orange, thick,samples=3] {0};
- \end{axis}
- \end{tikzpicture}
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