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<div style="text-align: center;"> <table style="border: 4px solid #003300; background-color: #ffffcc; width: 400px;" border="4" align="center"> <tbody> <tr> <td style="background-color: #ffcc33;" align="center" valign="middle"><span style="font-size: large; color: #003300;" data-mce-mark="1">AMB 2 PUNTS A i B<br /></span></td> </tr> <tr> <td style="background-color: #003300;" align="center" valign="middle"><span style="font-size: medium;" data-mce-mark="1"> <strong><span style="color: #ffff99;" data-mce-mark="1">Equació explícita</span></strong></span></td> </tr> <tr> <td> <p><span style="font-size: small; color: #003300;"> <strong>Es troba m i n per substitució<br /></strong></span></p> <p><span style="font-size: small;"><em>Exemple:</em> </span>L'equació explícita y=mx+n de la recta que passa per A(1,-1) i B(3,5) es troba substituint x i y per les coordenades dels punts: «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨12px¨»«mrow»«mfenced open=¨{¨ close=¨}¨»«mtable»«mtr»«mtd»«mo»-«/mo»«mn»1«/mn»«/mtd»«mtd»«mo»=«/mo»«mi»m«/mi»«mo»+«/mo»«mi»n«/mi»«/mtd»«/mtr»«mtr»«mtd»«mn»5«/mn»«/mtd»«mtd»«mo»=«/mo»«mn»3«/mn»«mi»m«/mi»«mo»+«/mo»«mi»n«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«mo»§#8660;«/mo»«mfenced open=¨{¨ close=¨}¨»«mtable»«mtr»«mtd»«mi»m«/mi»«mo»=«/mo»«mn»3«/mn»«/mtd»«/mtr»«mtr»«mtd»«mi»n«/mi»«mo»=«/mo»«mo»-«/mo»«mn»4«/mn»«/mtd»«/mtr»«/mtable»«/mfenced»«/mrow»«/mstyle»«/math»</p> <p>i l'equació és y = 3x-4</p> </td> </tr> </tbody> </table> </div>
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Thursday, 23 August 2018, 4:18 PM
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