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Test-Lidia
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Consideramos la función <span class="nolink">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»f«/mi»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«mo»=«/mo»«msub»«mi»log«/mi»«mi»#a«/mi»«/msub»«mo»(«/mo»«mi»x«/mi»«mo»+«/mo»«mi»#a«/mi»«mo»)«/mo»«/math»</span>
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Choice 1
Answer
No corta el eje de ordenadas porque el dominio de la función logaritmo son los reales positivos y 0 no pertenece al dominio
Grade
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Feedback
Atención, la función que consideramos es la función logaritmo trasladada horizontalmente, para saber si corta el eje de abscisas resuelve <span class="nolink">«math xmlns="http://www.w3.org/1998/Math/MathML"»«mi»f«/mi»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«mo»=«/mo»«mn»0«/mn»«/math»</span> y para saber si corta el eje de ordenadas calcula <span class="nolink">«math xmlns="http://www.w3.org/1998/Math/MathML"»«mi»f«/mi»«mo»(«/mo»«mn»0«/mn»«mo»)«/mo»«/math»</span>.
Choice 2
Answer
Corta el eje de ordenadas en el punto (0,1)
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Feedback
Muy bien, si calculamos <span class="nolink">«math xmlns="http://www.w3.org/1998/Math/MathML"»«mi»f«/mi»«mo»(«/mo»«mn»0«/mn»«mo»)«/mo»«/math»</span> el resultado es 1.
Choice 3
Answer
Corta el eje de ordenadas en el punto (0,#b)
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Feedback
Atención, el punto <span class="nolink">«math xmlns="http://www.w3.org/1998/Math/MathML"»«mo»(«/mo»«mi»#b«/mi»«mo»,«/mo»«mn»0«/mn»«mo»)«/mo»«/math»</span> es el punto de corte del eje de abscisas. #b es el resultado de resolver f(x)=0, por lo tanto es la abscisa del punto.
Choice 4
Answer
Grade
None
100%
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83.33333%
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66.66667%
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Feedback
Choice 5
Answer
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Feedback
Choice 6
Answer
Grade
None
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66.66667%
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16.66667%
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33.33333%
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Created
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Wednesday, 15 February 2017, 3:41 PM
Last saved
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Admin User
on
Wednesday, 15 February 2017, 3:41 PM
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