Question
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Find the absolute maximum and minimum values of the following function on the given set .

What is the absolute maximum value? Select the correct choice below and, if necessary, fill in the answer box to
complete your choice.
A. The absolute maximum value is 49 . (Simplify your answer.)
B. There is no absolute maximum value.
What is the absolute minimum value? Select the correct choice below and, if necessary, fill in the answer box to
complete your choice.
A. The absolute minimum value is . (Simplify your answer.)
B. There is no absolute minimum value.

Ask by Griffiths Wade. in the United States
Mar 21,2025

Upstudy AI Solution

Tutor-Verified Answer

Answer

The absolute maximum value is 49, and the absolute minimum value is 0.

Solution

We start by rewriting the function:
Complete the square in by grouping:
Thus, the function can be written as:
This shows that is the squared distance from the point to the point .
The region is given by:
which is a disk of radius 5 centered at the origin.
Absolute Minimum:
Since (being a sum of squares), the minimum value occurs when the squared distance is as small as possible. The distance from to is zero at the point:
Check that is in :
Thus, the absolute minimum value is:
Absolute Maximum:
The absolute maximum occurs where the squared distance from is the largest while still remaining on or within the disk . Notice that on the boundary, we have:
The maximum distance from within is the distance between the point and the point on the boundary farthest from .
The distance between the center of the disk and is:
Thus, the farthest distance from to any point on the disk is:
Therefore, the function reaches its maximum at a point on the boundary such that the distance is . Hence, the absolute maximum value is:
Final Answers:
  • The absolute maximum value is 49.
  • The absolute minimum value is 0.

Answered by UpStudy AI and reviewed by a Professional Tutor

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Explain
Simplify this solution

Mind Expander

To find the absolute maximum and minimum values of the function on the region , we first rewrite the function by completing the square for :
Now the function is expressed as:
Finding the minimum value:
  • The term is non-negative, and it achieves its minimum when and . Thus, the minimum value is:
This point lies inside the region since .
Finding the maximum value:
  • The maximum will occur on the boundary where .
  • To evaluate points on the boundary, we can express in terms of : or and substitute back into .
By checking some critical points on the circle:
  1. :
  2. :
  3. :
  4. :
The maximum value found occurs at and equals .
Final answers:
  • The absolute maximum value is 49.
  • The absolute minimum value is 0.
Thus, select option A for absolute maximum and option A for absolute minimum, filling in the answers accordingly:
The absolute maximum value is 49.
The absolute minimum value is 0.

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