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Test-Lidia
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<p><span style="font-weight: bold; color: #003300;">Considera les <span class="nolink">rectes</span> d'equacions:</span><br style="font-weight: bold; color: #006600;" /><span style="color: #003300;"><span style="font-weight: bold;"> </span>«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨12px¨»«mi mathvariant=¨bold¨ mathcolor=¨#003300¨»r«/mi»«mo mathvariant=¨bold¨ mathcolor=¨#003300¨»§#8801;«/mo»«mo mathvariant=¨bold¨ mathcolor=¨#003300¨»#«/mo»«mi mathvariant=¨bold-italic¨ mathcolor=¨#003300¨»e«/mi»«mn mathvariant=¨bold¨ mathcolor=¨#003300¨»1«/mn»«/mstyle»«/math»</span><br /><span style="color: #003300;"> «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨12px¨»«mi mathvariant=¨bold¨ mathcolor=¨#003300¨»s«/mi»«mo mathvariant=¨bold¨ mathcolor=¨#003300¨»§#8801;«/mo»«mfrac mathcolor=¨#003300¨»«mrow»«mo mathvariant=¨bold¨»#«/mo»«mi mathvariant=¨bold¨»n«/mi»«mn mathvariant=¨bold¨»1«/mn»«/mrow»«mrow»«mo mathvariant=¨bold¨»#«/mo»«mi mathvariant=¨bold¨»v«/mi»«mn mathvariant=¨bold¨»1«/mn»«/mrow»«/mfrac»«mo mathvariant=¨bold¨ mathcolor=¨#003300¨»=«/mo»«mfrac mathcolor=¨#003300¨»«mrow»«mo mathvariant=¨bold¨»#«/mo»«mi mathvariant=¨bold¨»n«/mi»«mn mathvariant=¨bold¨»2«/mn»«/mrow»«mrow»«mo mathvariant=¨bold¨»#«/mo»«mi mathvariant=¨bold¨»v«/mi»«mn mathvariant=¨bold¨»2«/mn»«/mrow»«/mfrac»«/mstyle»«/math»</span><br /><br /><span style="color: #003300;"><strong><span style="color: #003300;"><strong>a) Determina el pendent de r. <span style="color: #ff6600;">Format:</span> </strong></span>enter o fracció <strong><span style="text-decoration: underline;">simplificada<span style="color: #003300; text-decoration: underline;"><br /></span></span></strong></strong></span></p> <p><span style="color: #003300;"><strong>b) Determina el pendent de s. <span style="color: #003300;"><strong><span style="color: #ff6600;">Format:</span> </strong></span></strong></span>enter o fracció<span style="color: #003300;"><strong> <strong><span style="text-decoration: underline;">simplificada</span></strong></strong></span></p> <p><span style="color: #003300;"><strong><span style="color: #003300;"><strong>c) Determina si són paral·leles. <span style="color: #ff6600;">Format: </span> </strong></span>S si ho són i N si no ho són.</strong></span></p> <p> </p>
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<p><span style="color: #0000ff;"><strong>El</strong></span><span style="color: #0000ff;"><strong> gràfic és</strong> </span>#G1</p>
No, case is unimportant
Yes, case must match
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Answer 1
Answer
Grade
None
100%
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83.33333%
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66.66667%
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33.33333%
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16.66667%
14.28571%
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11.11111%
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Answer 2
Answer
Grade
None
100%
90%
83.33333%
80%
75%
70%
66.66667%
60%
50%
40%
33.33333%
30%
25%
20%
16.66667%
14.28571%
12.5%
11.11111%
10%
5%
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100%
50%
33.33333%
25%
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10%
0%
Hint 1
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<p><span style="color: #0000ff;"><strong>Un vector director de r és «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨12px¨»«mo mathvariant=¨bold¨ mathcolor=¨#0000FF¨»#«/mo»«mi mathvariant=¨bold-italic¨ mathcolor=¨#0000FF¨»u«/mi»«/mstyle»«/math» perquè amb ax+by+c=0 un vector director és (-b,a)<br /></strong></span></p> <p><span style="color: #0000ff;"><strong>Un vector de s és «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨12px¨»«mo mathvariant=¨bold¨ mathcolor=¨#0000FF¨»#«/mo»«mi mathvariant=¨bold-italic¨ mathcolor=¨#0000FF¨»v«/mi»«/mstyle»«/math» ja que, en l'equació contínua, els components són els denominadors.<br /></strong></span></p> <p><span style="color: #0000ff;"><strong>Calcula els pendents i compara.</strong></span></p> <p><span style="color: #008000;"><strong> </strong></span></p>
Hint 2
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Thursday, 23 August 2018, 4:19 PM
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