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Question text
Marca les afirmacions que són certes si considerem la gràfica de la funció afí següent: <br />#p<br /><br />
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a., b., c., ...
A., B., C., ...
1., 2., 3., ...
i., ii., iii., ...
I., II., III., ...
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Choice 1
Answer
La imatge de 0 és #b
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Feedback
Molt bé. Ens fixem que el punt <span class="nolink">«math xmlns="http://www.w3.org/1998/Math/MathML"»«mo»(«/mo»«mn»0«/mn»«mo»,«/mo»«mi»#b«/mi»«mo»)«/mo»«/math»</span> pertany a la recta. <br />
Choice 2
Answer
La imatge de 0 és #e
Grade
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83.33333%
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66.66667%
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Feedback
Atenció, has confós imatge i antiimatge. Els punts <span class="nolink">«math xmlns="http://www.w3.org/1998/Math/MathML"»«mo»(«/mo»«mn»0«/mn»«mo»,«/mo»«mi»#b«/mi»«mo»)«/mo»«/math»</span> i <span class="nolink">«math xmlns="http://www.w3.org/1998/Math/MathML"»«mo»(«/mo»«mi»#e«/mi»«mo»,«/mo»«mn»0«/mn»«mo»)«/mo»«/math»</span> pertanyen a la recta, però el segon punt ens indica que l'antiimatge del 0 és #e.
Choice 3
Answer
La gràfica de la funció f(x)=#g és paral·lela a la gràfica donada
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Feedback
Atenció, f(x) no té el mateix pendent que la recta de la gràfica donada. El pendent és l'oposat al de la recta de la gràfica. <br />#q<br />
Choice 4
Answer
La gràfica de la funció f(x)=#g té el mateix punt de tall amb l'eix d'ordenades que la gràfica donada
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Feedback
Molt bé. L'ordenada a l'origen és #b, per tant, la recta talla l'eix d'ordenades en <span class="nolink">«math xmlns="http://www.w3.org/1998/Math/MathML"»«mo»(«/mo»«mn»0«/mn»«mo»,«/mo»«mi»#b«/mi»«mo»)«/mo»«/math»</span> <br />#q<br />
Choice 5
Answer
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Feedback
Choice 6
Answer
Grade
None
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Feedback
Choice 7
Answer
Grade
None
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66.66667%
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Feedback
Combined feedback
For any correct response
For any partially correct response
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For any incorrect response
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Penalty for each incorrect try
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33.33333%
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0%
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, 1:04 PM
Last saved
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Admin User
on
Wednesday, 12 June 2013, 1:04 PM
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