Finding Inflection Points for y=(^3 +6x^2 +15x +19)e^-x

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SUMMARY

The discussion focuses on finding the inflection points of the function y=(x^3 + 6x^2 + 15x + 19)e^-x. The method involves calculating the second derivative of the function and identifying where the concavity changes. The steps outlined include taking two derivatives, setting the second derivative equal to zero, and solving for x to determine the inflection points, which should be accurate to five decimal places.

PREREQUISITES
  • Understanding of calculus, specifically derivatives and concavity
  • Familiarity with exponential functions, particularly e^-x
  • Ability to solve polynomial equations
  • Graphing skills to visualize concavity changes
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  • Practice finding second derivatives of composite functions
  • Learn techniques for graphing derivatives to identify concavity
  • Explore the implications of inflection points in real-world applications
  • Study the behavior of exponential decay functions in calculus
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Students studying calculus, particularly those focusing on derivatives and inflection points, as well as educators looking for examples of applying calculus concepts in problem-solving.

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Homework Statement


find the inflection points of the curve y=(^3 +6x^2 +15x +19)e^-x correct to five decimal places


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The Attempt at a Solution


i know how to find the inflection points. you graph the derivative and find where the concavity shifts. but the e^-x really throws me off
 
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Steps:
1)take 2 derivatives
2)set result equal to zero
3)solutions are inflection points
 

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