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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
30 Dec 2021

Given information

Given parabola is   

Step-by-step explanation

Step 1.
In part(a), we found that the -coordinates of the local minimum points are , substitute this in   to get the -coordinate.
 
                                                                       
 
Note that:  
         
                                                               
 
We have now proved that all the minimum points lie on  

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