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Test-Lidia
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Dado el siguiente sistema de inecuaciones<br /><span class="nolink">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mfenced close=¨}¨ open=¨¨»«mtable»«mtr»«mtd»«mn»0«/mn»«mo»§#10877;«/mo»«mfrac»«mrow»«mi»x«/mi»«mo»+«/mo»«mi»#aux«/mi»«/mrow»«mi»#aux1«/mi»«/mfrac»«mo»-«/mo»«mfenced»«mi»#a1«/mi»«/mfenced»«/mtd»«/mtr»«mtr»«mtd»«mfrac»«mrow»«mi»#aux2«/mi»«mo»·«/mo»«mi»x«/mi»«/mrow»«mi»#aux«/mi»«/mfrac»«mo»-«/mo»«mn»1«/mn»«mo»§lt;«/mo»«mfrac»«mi»#a2«/mi»«mi»#aux«/mi»«/mfrac»«mo»+«/mo»«mfrac»«mi»x«/mi»«mi»#aux«/mi»«/mfrac»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><br />resolvemos cada inecuación por separado (puedes practicar la resolución y comprobar el resultado) y obtenemos que la solución de la primera inecuación es <br /><br /><span class="nolink">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x«/mi»«mo»§#10878;«/mo»«mi»#a«/mi»«/math»</span><br /><br />y la solución de la segunda inecuación es <br /><br /><span class="nolink">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x«/mi»«mo»§lt;«/mo»«mi»#b«/mi»«/math»</span><br /><br />Entonces, la solución del sistema es: <br />
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One or multiple answers?
Multiple answers allowed
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Number the choices?
a., b., c., ...
A., B., C., ...
1., 2., 3., ...
i., ii., iii., ...
I., II., III., ...
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Algorithm
Choice 1
Answer
«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»[«/mo»«mi»#a«/mi»«mo»,«/mo»«mi»#b«/mi»«mo»)«/mo»«/math»
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%
-5%
-10%
-11.11111%
-12.5%
-14.28571%
-16.66667%
-20%
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-30%
-33.33333%
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-66.66667%
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-80%
-83.33333%
-90%
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Feedback
Muy bien. Los valores de x mayores o iguales a #a que son menores que #b son solución del sistema.<br />
Choice 2
Answer
«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»(«/mo»«mi»#a«/mi»«mo»,«/mo»«mi»#b«/mi»«mo»]«/mo»«/math»
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%
-5%
-10%
-11.11111%
-12.5%
-14.28571%
-16.66667%
-20%
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-40%
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-90%
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Feedback
Atención, este intervalo corresponde a los valores de x tales que <span class="nolink">«math xmlns="http://www.w3.org/1998/Math/MathML"»«mi»x«/mi»«mo»§gt;«/mo»«mi»#a«/mi»«/math»</span> y <span class="nolink">«math xmlns="http://www.w3.org/1998/Math/MathML"»«mi»x«/mi»«mo»§#10877;«/mo»«mi»#b«/mi»«/math»</span>.<br />
Choice 3
Answer
«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»[«/mo»«mi»#a«/mi»«mo»,«/mo»«mi»#c«/mi»«mo»]«/mo»«/math»
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%
-5%
-10%
-11.11111%
-12.5%
-14.28571%
-16.66667%
-20%
-25%
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-33.33333%
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-66.66667%
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-83.33333%
-90%
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Feedback
Atención, este sistema tiene infinitas soluciones reales. #a y #c son soluciones enteras del sistema pero debes tener en cuenta los valores de x mayores que #c y menores que #b.<br />
Choice 4
Answer
Grade
None
100%
90%
83.33333%
80%
75%
70%
66.66667%
60%
50%
40%
33.33333%
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16.66667%
14.28571%
12.5%
11.11111%
10%
5%
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-12.5%
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-16.66667%
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-83.33333%
-90%
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Feedback
Choice 5
Answer
Grade
None
100%
90%
83.33333%
80%
75%
70%
66.66667%
60%
50%
40%
33.33333%
30%
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16.66667%
14.28571%
12.5%
11.11111%
10%
5%
-5%
-10%
-11.11111%
-12.5%
-14.28571%
-16.66667%
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-83.33333%
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Feedback
Choice 6
Answer
Grade
None
100%
90%
83.33333%
80%
75%
70%
66.66667%
60%
50%
40%
33.33333%
30%
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16.66667%
14.28571%
12.5%
11.11111%
10%
5%
-5%
-10%
-11.11111%
-12.5%
-14.28571%
-16.66667%
-20%
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-66.66667%
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-75%
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-83.33333%
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Feedback
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Penalty for each incorrect try
0%
10%
20%
25%
30%
33.33333%
50%
100%
Hint 1
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Hint 2
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Created / last saved
Created
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Admin User
on
Wednesday, 12 June 2013, 1:12 PM
Last saved
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on
Wednesday, 12 June 2013, 1:12 PM
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