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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
20 Dec 2021

Given information

The given points are , and 

Step-by-step explanation

Step 1.
We need to find this cubic function whose graph has horizontal tangents at the given points.
Applying the Power Rule and The Constant Multiple Rule, we obtain:
 
From the fact that cubic function has horizontal tangent line at the given points, we can conclude that slope is zero, respectively, .
Now, let's set up the system of equations:

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