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 <question type="category"><category><text>FUNCIONES</text></category></question>
 
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 <question type="multichoicewiris">
    <name><text>FUNCIONES 2.1.1 Características de la función lineal</text>
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    <questiontext format="html">
<text><![CDATA[<p><i><font face="times new roman,times,serif" size="4">sea <span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»f«/mi»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«mo»=«/mo»«mi»m«/mi»«mi»x«/mi»«mo»+«/mo»«mi»b«/mi»«/math»</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>, cuyo gráfico es: </font></i></p><i><font face="times new roman,times,serif" size="4"> </font></i>
<p align="center"><i><font face="times new roman,times,serif" size="4">#graf</font></i></p><i><font face="times new roman,times,serif" size="4"> </font></i>
<p align="left"><i><font face="times new roman,times,serif" size="4">Determine cuál de las siguientes afirmaciones es verdadera:</font></i></p>
<p align="left"><i><font color="#990000" face="times new roman,times,serif" size="4">O<font size="4">b</font>servación:</font></i></p>
<p align="left"><i><font color="#990000" face="times new roman,times,serif" size="4">Hay más de una alternativa correcta. </font></i><br /></p>
<p align="center"></p>]]></text>
    </questiontext>
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    <generalfeedback>
<text><![CDATA[<p><font face="times new roman,times,serif" size="4"><i>Solución:</i></font></p><font face="times new roman,times,serif" size="4"> </font>
<p><font face="times new roman,times,serif" size="4"><i>En esta pregunta se trabaja con el concepto de pendiente, intersección con el eje <span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»y«/mi»«/math»</span> e intersección con el eje <span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»x«/mi»«/math»</span>, cada uno lo analizaremos por separado.</i></font></p><font face="times new roman,times,serif" size="4"> </font>
<p><i><font face="times new roman,times,serif"><font size="4"><u>Pendiente:</u> recordemos que si la función lineal tiene como expresión analítica <span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»f«/mi»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«mo»=«/mo»«mi»m«/mi»«mi»x«/mi»«mo»+«/mo»«mi»b«/mi»«/math»</span>, entonces: </span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></font></font></i></p><font face="times new roman,times,serif" size="4"> </font>
<blockquote style="margin: 0px 0px 0px 40px; padding: 0px; border: currentcolor;"><font face="times new roman,times,serif" size="4"> </font>
  <blockquote style="margin: 0px 0px 0px 40px; padding: 0px; border: currentcolor;"><font face="times new roman,times,serif" size="4"> </font>
    <p><i><font face="times new roman,times,serif" size="4"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink">Si <span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»m«/mi»«mo»§gt;«/mo»«mn»0«/mn»«/math»</span> entonces <span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»f«/mi»«/math»</span> es creciente.</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></font></i></p></blockquote><font face="times new roman,times,serif" size="4"> </font>
  <blockquote style="margin: 0px 0px 0px 40px; padding: 0px; border: currentcolor;"><font face="times new roman,times,serif" size="4"> </font>
    <p><i><font face="times new roman,times,serif" size="4"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink">Si <span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»m«/mi»«mo»§lt;«/mo»«mn»0«/mn»«/math»</span> entonces <span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»f«/mi»«/math»</span> es decreciente.</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></font></i></p></blockquote><font face="times new roman,times,serif" size="4"> </font>
  <blockquote style="margin: 0px 0px 0px 40px; padding: 0px; border: currentcolor;"><font face="times new roman,times,serif" size="4"> </font>
    <p><i><font face="times new roman,times,serif" size="4"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink">Si <span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»m«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span> entonces <span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»f«/mi»«/math»</span> es constante.</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></font></i></p></blockquote></blockquote><font face="times new roman,times,serif" size="4"> </font>
<p><i><font face="times new roman,times,serif" size="4"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink">En este caso como la recta es #monotona podemos inferir que #opa.</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></font></i></p><font face="times new roman,times,serif" size="4"> </font>
<p><i><u><br /></u></i></p><font face="times new roman,times,serif" size="4"> </font>
<p><font face="times new roman,times,serif"><font size="4"><i><u> Intersección con el eje </u><u><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»y«/mi»«/math»</span></u>: por otro lado, recordemos que si </i><i>la función lineal tiene como expresión analítica <span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»f«/mi»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«mo»=«/mo»«mi»m«/mi»«mi»x«/mi»«mo»+«/mo»«mi»b«/mi»«/math»</span>, entonces la intersección con el eje <span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»y«/mi»«/math»</span> </span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></i><i><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"> se obtiene reemplazando x por 0, obteniendo </span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></i><i><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink">el punto <span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced»«mrow»«mn»0«/mn»«mo»,«/mo»«mi»b«/mi»«/mrow»«/mfenced»«/math»</span>. En este caso la intersección con el eje </span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></i><i><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»y«/mi»«/math»</span> es el punto rojo que está marcado en el gráfico:</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></i></font></font></p><font face="times new roman,times,serif" size="4"> </font>
<p style="text-align: center;"><i><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><font face="times new roman,times,serif" size="4">#graf2</font></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></i></p><font face="times new roman,times,serif" size="4"> </font>
<p style="text-align: left;"><i><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><font face="times new roman,times,serif" size="4">Por lo tanto podemos concluir que #opc.</font></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></i></p><font face="times new roman,times,serif" size="4"> </font>
<p style="text-align: left;"><i><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><br /></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></i></p><font face="times new roman,times,serif" size="4"> </font>
<p style="text-align: left;"><font face="times new roman,times,serif"><font size="4"><i><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><u>Intersección con el eje </u><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»x«/mi»«/math»</span>: </span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></i><i>por último, recordemos que si </i><i>la función lineal tiene como expresión analítica <span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»f«/mi»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«mo»=«/mo»«mi»m«/mi»«mi»x«/mi»«mo»+«/mo»«mi»b«/mi»«/math»</span>, entonces la intersección con el eje <span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»x«/mi»«/math»</span> se obtiene igualando <span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»f«/mi»«/math»</span> a <span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mn»0«/mn»«/math»</span>, quedándonos la ecuación <span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»m«/mi»«mi»x«/mi»«mo»+«/mo»«mi»b«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span>, al despejar </span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></i><i><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»x«/mi»«/math»</span> se obtiene <span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»x«/mi»«mo»=«/mo»«mo»-«/mo»«mfrac»«mi»b«/mi»«mi»m«/mi»«/mfrac»«/math»</span>. En este caso la intersección con el eje <span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»x«/mi»«/math»</span> es el punto azul marcado en el gráfico:</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></i></font></font></p><font face="times new roman,times,serif" size="4"> </font>
<p style="text-align: center;"><i><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><font face="times new roman,times,serif" size="4">#graf3</font></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></i></p><font face="times new roman,times,serif" size="4"> </font>
<p style="text-align: left;"><i><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><font face="times new roman,times,serif" size="4">Por lo tanto la alternativa correcta es #ope.</font></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></i></p><font face="times new roman,times,serif" size="4"> </font>
<p><i><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"><span class="nolink"></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></i><span></span></p>]]></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>1</shuffleanswers>
<single>false</single><shuffleanswers>true</shuffleanswers><correctfeedback>      <text></text>
</correctfeedback><partiallycorrectfeedback>      <text></text>
</partiallycorrectfeedback><incorrectfeedback>      <text></text>
</incorrectfeedback><answernumbering>abc</answernumbering><answer fraction="40">        <text>
#opa
        </text>
<feedback>          <text>
<![CDATA[
<p><font face="times new roman, times, serif" size="4"><i>¡Muy bien!</i></font></p> ]]>
          </text>
</feedback></answer><answer fraction="0">        <text>
#opb
        </text>
<feedback>          <text>
<![CDATA[
<p><font face="times new roman, times, serif" size="4"><i>Observa que <span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»f«/mi»«/math»</span> es #monotona.</i></font></p> ]]>
          </text>
</feedback></answer><answer fraction="30">        <text>
#opc
        </text>
<feedback>          <text>
<![CDATA[
<p><font face="times new roman, times, serif" size="4"><i>¡excelente!</i></font></p> ]]>
          </text>
</feedback></answer><answer fraction="0">        <text>
#opd
        </text>
<feedback>          <text>
<![CDATA[
<p><font face="times new roman, times, serif" size="4"><i>Observa que la coordenada </i></font><i><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»y«/mi»«/math»</span></i><font face="times new roman, times, serif" size="4"><i> de la intersección de <span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»f«/mi»«/math»</span> con el eje <span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»y«/mi»«/math»</span> #sig.</i></font> </p> ]]>
          </text>
</feedback></answer><answer fraction="30">        <text>
#ope
        </text>
<feedback>          <text>
<![CDATA[
<p><font face="times new roman, times, serif" size="4"><i>¡sigue así!</i></font></p> ]]>
          </text>
</feedback></answer><answer fraction="0">        <text>
#opf
        </text>
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<![CDATA[
<p><font face="times new roman, times, serif" size="4"><i>Observa que la coordenada </i></font><i><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»x«/mi»«/math»</span></i><font face="times new roman, times, serif" size="4"><i> de la intersección de <span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»f«/mi»«/math»</span> con el eje </i></font><i><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»x«/mi»«/math»</span></i><font face="times new roman, times, serif" size="4"><i> #sig2.</i></font> </p> ]]>
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xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»if«/csymbol»«mrow»«mi»m1«/mi»«mo»§gt;«/mo»«mn»0«/mn»«/mrow»«mrow»«mi»texto1«/mi»«mo»=«/mo»«mo»§quot;«/mo»«mi»positiva«/mi»«mo»§quot;«/mo»«/mrow»«mrow»«mi»texto1«/mi»«mo»=«/mo»«mo»§quot;«/mo»«mi»negativa«/mi»«mo»§quot;«/mo»«/mrow»«/apply»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»f1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»4«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»2«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»M«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»2«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»s1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»s1«/mi»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»s2«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»s2«/mi»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»graf2«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»graf2«/mi»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»tablero«/mi»«mo»(«/mo»«mfenced close=¨}¨ open=¨{¨»«mtable align=¨center¨»«mtr»«mtd»«mi»anchura«/mi»«mo»=«/mo»«mfenced close=¨§verbar;¨ open=¨§verbar;¨»«mfrac»«mrow»«mo»-«/mo»«mi»b1«/mi»«/mrow»«mi»m1«/mi»«/mfrac»«/mfenced»«mo»*«/mo»«mn»1«/mn»«mo».«/mo»«mn»1«/mn»«mo»§nbsp;«/mo»«mo»,«/mo»«mi»altura«/mi»«mo»=«/mo»«mn»1«/mn»«mo».«/mo»«mn»1«/mn»«mo»*«/mo»«mi»b1«/mi»«mo»,«/mo»«mo»§nbsp;«/mo»«mo»§nbsp;«/mo»«mi»centro«/mi»«mo»=«/mo»«mi»punto«/mi»«mo»(«/mo»«mfrac»«mrow»«mo»-«/mo»«mi»b1«/mi»«/mrow»«mrow»«mn»2«/mn»«mi»m1«/mi»«/mrow»«/mfrac»«mo»,«/mo»«mfrac»«mi»b1«/mi»«mn»2«/mn»«/mfrac»«mo»)«/mo»«/mtd»«/mtr»«/mtable»«/mfenced»«mo»)«/mo»«/math»«/input»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»if«/csymbol»«mrow»«mi»m1«/mi»«mo»§gt;«/mo»«mn»0«/mn»«/mrow»«mtable»«mtr»«mtd»«mi»opa«/mi»«mo»=«/mo»«mo»§quot;«/mo»«mi»m«/mi»«mo»§gt;«/mo»«mn»0«/mn»«mo»§quot;«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»opb«/mi»«mo»=«/mo»«mo»§quot;«/mo»«mi»m«/mi»«mo»§lt;«/mo»«mn»0«/mn»«mo»§quot;«/mo»«/mtd»«/mtr»«/mtable»«mtable»«mtr»«mtd»«mi»opa«/mi»«mo»=«/mo»«mo»§quot;«/mo»«mi»m«/mi»«mo»§lt;«/mo»«mn»0«/mn»«mo»§quot;«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»opb«/mi»«mo»=«/mo»«mo»§quot;«/mo»«mi»m«/mi»«mo»§gt;«/mo»«mn»0«/mn»«mo»§quot;«/mo»«/mtd»«/mtr»«/mtable»«/apply»«/math»«/input»«/command»«/group»«/session»</wirisquestion><wirisoverrideanswer>;;;;;;;;</wirisoverrideanswer><wirisoptions></wirisoptions></question>
 </quiz>
