für overleaf überarbeitet

Band2/Grafiken/B2_10.tikz

@@ -0,0 +1,37 @@
+\begin{tikzpicture}
+
+\begin{axis}[
+ x=1cm,y=1cm,
+axis lines=middle,
+      axis x line=middle,
+        axis y line=middle,
+        %enlarge x limits=0.15,
+        %enlarge y limits=0.15,
+        every axis x label/.style={at={(current axis.right of origin)},anchor=north east},
+        every axis y label/.style={at={(current axis.above origin)},anchor=north east},
+xmin=-0.5,
+xmax=6.,
+ymin=-0.5,
+ymax=5,
+ytick={1,...,2},
+xtick={3},
+xlabel=$x$,
+ylabel=$y$,
+]
+
+\addplot[domain=0.75:3, blue!80!black, line width=1,samples=50] {3/x};
+\addplot[domain=3:5, blue!80!black, line width=1,samples=50] {x-1};
+\addplot[color=blue!80!black, only marks, style={mark=*, fill=white}] coordinates {(3,2)};
+\addplot[color=blue!80!black, only marks, style={mark=*	}] coordinates {(3,1)};
+
+\draw [dashed, draw=black] (axis cs: -0.05,1) -- (axis cs: 3,1);
+\draw [dashed, draw=black] (axis cs: -0.05,2) -- (axis cs: 3,2);
+\draw [dashed, draw=black] (axis cs: 3,-0.05) -- (axis cs: 3,2);
+
+\node[] at (axis cs:4.5,4.5) {\footnotesize$y=\left\{\begin{array}{l}
+\frac{3}{x} \text { für } 0<x \leq 3 \\
+x-1 \text { für } x>3
+\end{array}\right.$};
+
+\end{axis}
+\end{tikzpicture}