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<p><span style="color: #006600;"><strong>Un punt de la recta (x,y) = (a,b) + k·(v,w) és ({1:SA: ~=a}, {1:SA: ~=b})<br /><br />Un punt de la recta </strong></span><span class="nolink">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mfenced mathcolor=¨#007F00¨ open=¨{¨ close=¨¨»«mtable»«mtr»«mtd»«mi mathvariant=¨bold¨»x«/mi»«mo mathvariant=¨bold¨»=«/mo»«mi mathvariant=¨bold¨»k«/mi»«mo mathvariant=¨bold¨»§#183;«/mo»«mi mathvariant=¨bold¨»z«/mi»«mo mathvariant=¨bold¨»+«/mo»«mi mathvariant=¨bold¨»m«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi mathvariant=¨bold¨»y«/mi»«mo mathvariant=¨bold¨»=«/mo»«mi mathvariant=¨bold¨»k«/mi»«mo mathvariant=¨bold¨»§#183;«/mo»«mi mathvariant=¨bold¨»t«/mi»«mo mathvariant=¨bold¨»+«/mo»«mi mathvariant=¨bold¨»n«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><span style="color: #006600;"><strong>és ({1:SA: ~=m}, {1:SA: ~=n})<br />Un punt de la recta <span class="nolink">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mfrac mathcolor=¨#007F00¨»«mrow»«mi mathvariant=¨bold¨»x«/mi»«mo mathvariant=¨bold¨»-«/mo»«mi mathvariant=¨bold¨»e«/mi»«/mrow»«mi mathvariant=¨bold¨»p«/mi»«/mfrac»«mo mathvariant=¨bold¨ mathcolor=¨#007F00¨»=«/mo»«mfrac mathcolor=¨#007F00¨»«mrow»«mi mathvariant=¨bold¨»y«/mi»«mo mathvariant=¨bold¨»-«/mo»«mi mathvariant=¨bold¨»f«/mi»«/mrow»«mi mathvariant=¨bold¨»q«/mi»«/mfrac»«/math»</span></strong></span><span style="color: #006600;"><strong><span style="color: #006600;"><strong> és ({1:SA: ~=e}, {1:SA: ~=f})<br /><br />Per trobar un punt de la recta Gx + Hy + I </strong></span></strong></span><span style="color: #006600;"><strong>podem substituir y per k i {1:MC: ~aïllar y~=aïllar x}<br /></strong></span><br /><span style="color: #006600;"><strong><span style="color: #006600;"><strong><span style="color: #006600;"><strong>Per trobar un punt de la recta y= rx + s, substituïm x per k</strong></span></strong></span><span style="color: #006600;"><strong> i {1:MC: ~aïllem x~=aïllem y})</strong></span><br /><br /></strong></span></p>
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Thursday, 23 August 2018, 4:18 PM
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