https://geometrie.idea-sketch.com/index.php?action=history&feed=atom&title=Allgemeine_lineare_Gleichung_mit_zwei_Variablen
Allgemeine lineare Gleichung mit zwei Variablen - Versionsgeschichte
2026-07-03T03:03:19Z
Versionsgeschichte dieser Seite in Geometrie-Wiki
MediaWiki 1.43.9
https://geometrie.idea-sketch.com/index.php?title=Allgemeine_lineare_Gleichung_mit_zwei_Variablen&diff=31259&oldid=prev
*m.g.* am 3. Mai 2018 um 14:23 Uhr
2018-05-03T14:23:01Z
<p></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="de">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Nächstältere Version</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Version vom 3. Mai 2018, 14:23 Uhr</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Zeile 1:</td>
<td colspan="2" class="diff-lineno">Zeile 1:</td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"><div style="margin:0; margin-right:4px; border:1px solid #27408B; padding: 1em 1em 1em 1em; background-color:#B9D0F0; align:left;"></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">{|width=90%| style="background-color:#B9D0F0; padding:1em"</ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">| valign="top" |</ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"><!--- hier drüber nichts eintragen ---></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===ax + by + c = 0===</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===ax + by + c = 0===</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><math></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><math></div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l48">Zeile 48:</td>
<td colspan="2" class="diff-lineno">Zeile 56:</td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></math><br /></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></math><br /></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><math>L=\left \{ (x\vert y) \left \vert \begin{align} x&= \frac{c}{a} \\ y&= t\end{align} ; t \in \mathbb{R} \right. \right \}</math><br /></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><math>L=\left \{ (x\vert y) \left \vert \begin{align} x&= \frac{c}{a} \\ y&= t\end{align} ; t \in \mathbb{R} \right. \right \}</math><br /></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"><!--- hier drunter nichts eintragen ---></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[Kategorie:Linalg]]</ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">|}</ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></div></ins></div></td></tr>
<!-- diff cache key zum_geometrie:diff:1.41:old-31252:rev-31259:php=table -->
</table>
*m.g.*
https://geometrie.idea-sketch.com/index.php?title=Allgemeine_lineare_Gleichung_mit_zwei_Variablen&diff=31252&oldid=prev
*m.g.*: Die Seite wurde neu angelegt: „===ax + by + c = 0=== <math> \begin{align} ax+by=c \\ a, b, c \in \mathbb{R} \\ x, y \in \mathbb{R}, \end{align} </math><br /> <iframe scrolling="no" title="Li…“
2018-05-03T14:15:27Z
<p>Die Seite wurde neu angelegt: „===ax + by + c = 0=== <math> \begin{align} ax+by=c \\ a, b, c \in \mathbb{R} \\ x, y \in \mathbb{R}, \end{align} </math><br /> <iframe scrolling="no" title="Li…“</p>
<p><b>Neue Seite</b></p><div>===ax + by + c = 0===<br />
<math><br />
\begin{align}<br />
ax+by=c \\<br />
a, b, c \in \mathbb{R} \\<br />
x, y \in \mathbb{R},<br />
\end{align}<br />
</math><br /><br />
<iframe scrolling="no" title="Lineare Gleichung mit zwei Variablen" src="https://www.geogebra.org/material/iframe/id/ScDQeGnF/width/852/height/568/border/888888/smb/false/stb/false/stbh/false/ai/false/asb/false/sri/false/rc/false/ld/false/sdz/false/ctl/false" width="852px" height="568px" style="border:0px;"> </iframe><br />
<br /><br />
===Grafische Veranschaulichung der Lösungsmenge einer Gleichung vom Typ ax+by=c===<br />
Es seien <math>a, b, c \in \mathbb{R}</math> , beliebig aber fest, <math>a, b</math> nicht gleichzeitig <math>0</math>,<br /><br />
<math>x,y \in \mathbb{R}</math>, variabel.<br /> Wir untersuchen die Gleichung<br /><br />
(I) <math>ax+by=c</math><br />
<br />
'''Satz 1:'''<br /><br />
:Die Gleichung (II) <math>ax+by=c</math> beschreibt die Menge aller Punkte einer Geraden in der reellen Zahlenebene.<br /><br />
'''Beweis:'''<br /><br />
Aus der Schule ist die folgende Gleichung für Geraden bekannt: <math>y=mx+b</math>, <math>m,b \in \mathbb{R}</math>, beliebig aber fest, <math>x,y \in \mathbb{R}</math> variabel.<br />
Wir führen zwei Beweise:<br />
# Wir zeigen, dass jede Gleichung vom Typ (I) durch äquivalente Umformungen in eine Gleichung vom Typ (II) überführt werden kann.<br />
# Wir zeigen, dass umgekehrt (fast) jede Gleichung vom Typ (II) durch äquivalente Umformungen in den Typ (I) überführt werden können.<br />
Ausführung des Beweises: Übungsaufgaben 1.1 und 1.2 in [[Serie 1: Geraden in der Ebene, zwei Gleichungen mit zwei Unbekannten SoSe 2018]]<br />
===Algebraische Beschreibung der Lösungsmenge einer Gleichung der Form <math>ax+by=c</math>===<br />
====Voraussetzung====<br />
Wir schließen aus, dass <math>a</math> und <math>b</math> gleichzeitig <math>0</math> sind: <math>a^2 +b^2 \not = 0</math><br />
====Fall 1: <math>b \not =0</math>====<br />
<math><br />
\begin{align}<br />
ax+by &= c \\<br />
by &= -ax+c \\<br />
y &= \frac{-ax+c}{b} \\<br />
y &= -\frac{a}{b}x+\frac{b}{c}<br />
\end{align}<br />
</math><br />
<br /><br />
<br />
<math>L=\left \{ (x\vert y) \left \vert \begin{align} x&= t \\ y&= -\frac{a}{b}t+\frac{b}{c} \end{align} ; t \in \mathbb{R} \right. \right \}</math><br /><br />
Falls <math>a=0</math> vereinfacht sich die Lösungsmenge <math>L</math> zu: <br /><br />
<math>L=\left \{ (x\vert y) \left \vert \begin{align} x&= t \\ y&= \frac{b}{c} \end{align} ; t \in \mathbb{R} \right. \right \}</math><br /><br />
<br />
====Fall 2: <math>b=0</math>====<br />
<math><br />
\begin{align}<br />
a x &=c \\<br />
x&=\frac{c}{a}<br />
\end{align}<br />
</math><br /><br />
<math>L=\left \{ (x\vert y) \left \vert \begin{align} x&= \frac{c}{a} \\ y&= t\end{align} ; t \in \mathbb{R} \right. \right \}</math><br /></div>
*m.g.*