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Test-Lidia
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Question text
Regarding of the function <span class="nolink">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»f«/mi»«mo»:«/mo»«msup»«mi»§#8477;«/mi»«mn»2«/mn»«/msup»«mo»§#8594;«/mo»«msup»«mi»§#8477;«/mi»«mn»2«/mn»«/msup»«/math»</span> defined by <span class="nolink">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»f«/mi»«mo»(«/mo»«mi»x«/mi»«mo»,«/mo»«mi»y«/mi»«mo»)«/mo»«mo»=«/mo»«mi»#f«/mi»«/math»</span><br />on the domain<br /><br /> <div style="text-align: center;"><span class="nolink">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»D«/mi»«mo»=«/mo»«mfenced close=¨}¨ open=¨{¨»«mrow»«mo»(«/mo»«mi»x«/mi»«mo»,«/mo»«mi»y«/mi»«mo»)«/mo»«mo»§#8712;«/mo»«msup»«mi»§#8477;«/mi»«mn»2«/mn»«/msup»«mo»,«/mo»«mo»§nbsp;«/mo»«mi»y«/mi»«mo»§#10878;«/mo»«mo»-«/mo»«mi»#b«/mi»«mo»·«/mo»«mi»x«/mi»«mo»,«/mo»«mo»§nbsp;«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«msup»«mi»y«/mi»«mn»2«/mn»«/msup»«mo»§#10877;«/mo»«mi»#A«/mi»«mo»,«/mo»«mo»§nbsp;«/mo»«mi»y«/mi»«mo»§#10878;«/mo»«mi»#c«/mi»«mo»·«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«/mrow»«/mfenced»«/math»</span><br /><br /> <div style="text-align: justify;">Choose the correct statement (there may be more than one)<br /></div> </div>
Default mark
General feedback
<span class="nolink">«math xmlns="http://www.w3.org/1998/Math/MathML"»«mover»«mi»D«/mi»«mi»o«/mi»«/mover»«/math»</span>
One or multiple answers?
Multiple answers allowed
One answer only
Shuffle the choices?
Number the choices?
a., b., c., ...
A., B., C., ...
1., 2., 3., ...
i., ii., iii., ...
I., II., III., ...
No numbering
WIRIS variables
Algorithm
Choice 1
Answer
Although there exists an absolute minimum, the existance of an absolute maximum cannot be determined a priori
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Choice 2
Answer
There are no extrema located at «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mover»«mi»D«/mi»«mi»o«/mi»«/mover»«/math»
Format
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None
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Choice 3
Answer
On the boundary «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»y«/mi»«mo»=«/mo»«mo»-«/mo»«mi»#b«/mi»«mo»·«/mo»«mi»x«/mi»«/math» lies the extremum candidate «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mfenced»«mrow»«mi»#nex1X«/mi»«mo»,«/mo»«mo»§nbsp;«/mo»«mi»#nex1Y«/mi»«/mrow»«/mfenced»«/math»
Format
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Grade
None
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83.33333%
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66.66667%
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Feedback
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Choice 4
Answer
The extrema candidate on the circumference can be found knowing «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»f«/mi»«mo»(«/mo»«mi»x«/mi»«mo»,«/mo»«mi»y«/mi»«mo»)«/mo»«mo»=«/mo»«mi»#f«/mi»«mo»=«/mo»«mi»#ffals«/mi»«/math» via the restriction «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«msup»«mi»y«/mi»«mn»2«/mn»«/msup»«mo»=«/mo»«msup»«mi»#A«/mi»«mn»2«/mn»«/msup»«/math»
Format
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Grade
None
100%
90%
83.33333%
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75%
70%
66.66667%
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33.33333%
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Feedback
<br /><br /><span class="nolink">«math xmlns="http://www.w3.org/1998/Math/MathML"»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«msup»«mi»y«/mi»«mn»2«/mn»«/msup»«mo»=«/mo»«msup»«mi»#A«/mi»«mn»2«/mn»«/msup»«/math»</span><br />
Format
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Choice 5
Answer
The only possible extrema are located at the origin, at the point «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mfenced»«mrow»«mn»#x1«/mn»«mo»,«/mo»«mi»#y1«/mi»«/mrow»«/mfenced»«/math» and at the point «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mfenced»«mrow»«mn»#x2«/mn»«mo»,«/mo»«mi»#y2«/mi»«/mrow»«/mfenced»«/math»
Format
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Moodle auto-format
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Markdown format
Grade
None
100%
90%
83.33333%
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66.66667%
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Feedback
Format
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Choice 6
Answer
The maximum value of «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»f«/mi»«mo»(«/mo»«mi»x«/mi»«mo»,«/mo»«mi»y«/mi»«mo»)«/mo»«/math» is #sol and it is not achieved on a boundary intersection point
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Grade
None
100%
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83.33333%
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66.66667%
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Feedback
<span class="nolink">«math xmlns="http://www.w3.org/1998/Math/MathML"»«mi»f«/mi»«mo»(«/mo»«mi»x«/mi»«mo»,«/mo»«mi»y«/mi»«mo»)«/mo»«/math»</span>
Format
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Moodle auto-format
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Choice 7
Answer
Grade
None
100%
90%
83.33333%
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66.66667%
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Feedback
Choice 8
Answer
Grade
None
100%
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83.33333%
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Feedback
Choice 9
Answer
Grade
None
100%
90%
83.33333%
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66.66667%
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33.33333%
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Feedback
Combined feedback
For any correct response
Format
HTML format
Moodle auto-format
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Markdown format
For any partially correct response
Format
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Moodle auto-format
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Markdown format
Options
Show the number of correct responses once the question has finished
For any incorrect response
Format
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Plain text format
Markdown format
Settings for multiple tries
Penalty for each incorrect try
100%
50%
33.33333%
25%
20%
10%
0%
Hint 1
Hint text
Options
Clear incorrect responses
Show the number of correct responses
Hint 2
Hint text
Options
Clear incorrect responses
Show the number of correct responses
Created / last saved
Created
by
Admin User
on
Thursday, 10 December 2015, 10:53 AM
Last saved
by
Admin User
on
Thursday, 10 December 2015, 10:53 AM
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