To conclude : the tangent to the graph of
Explanation of Solution
Given information :
Suppose
Formula needed :
If function has a horizontal tangent at
Differentiate
So, the slope of function at
For horizontal tangent,
Either
If
If
Hence, if
Chapter 3 Solutions
AP CALCULUS TEST PREP-WORKBOOK
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- Calculus: Early TranscendentalsCalculusISBN:9781319050740Author:Jon Rogawski, Colin Adams, Robert FranzosaPublisher:W. H. FreemanCalculus: Early Transcendental FunctionsCalculusISBN:9781337552516Author:Ron Larson, Bruce H. EdwardsPublisher:Cengage Learning