End Behavior of Even and Odd-Degree Polynomial Functions

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SUMMARY

The discussion centers on the end behavior of polynomial functions, specifically addressing the misconceptions surrounding even-degree and odd-degree polynomials. An even-degree polynomial, such as "x^4 + 10x^3 + x^2 + x + 1", typically exhibits the same end behavior, while odd-degree polynomials display opposite end behaviors. The confusion arises when the graph is not viewed over a sufficiently wide interval, leading to misinterpretation of the function's behavior at the extremes. The participant clarified their misunderstanding after examining the graph over a broader range.

PREREQUISITES
  • Understanding of polynomial functions and their degrees
  • Familiarity with graphing techniques and tools like WolframAlpha
  • Knowledge of end behavior concepts in mathematics
  • Basic algebra skills for manipulating polynomial expressions
NEXT STEPS
  • Explore the properties of polynomial functions in detail
  • Learn how to use graphing tools effectively, such as Desmos or GeoGebra
  • Study the concept of limits and their relation to end behavior
  • Investigate the impact of coefficients on the end behavior of polynomials
USEFUL FOR

Students studying algebra, mathematics educators, and anyone interested in understanding polynomial functions and their graphical representations.

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Homework Statement



My textbook tells me that "An even-degree polynomial function has the same end behavior" and "An odd-degree polynomial polynomial function has opposite end behaviors".

Why is it that when I try to graph let's say "x^4 + 10x^3 + x^2 +x + 1" the end behaviors are opposite even though the function is an even-degree polynomial function?

Homework Equations





The Attempt at a Solution

 
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zeion said:

Homework Statement



My textbook tells me that "An even-degree polynomial function has the same end behavior" and "An odd-degree polynomial polynomial function has opposite end behaviors".

Why is it that when I try to graph let's say "x^4 + 10x^3 + x^2 +x + 1" the end behaviors are opposite even though the function is an even-degree polynomial function?

Homework Equations



The Attempt at a Solution

Perhaps it's because you are graphing it over an itnerval which doesn't extend far enough.

Here's a graph of your polynomial for -10.1 ≤ x ≤ 2.5 . (from WolframAlpha)

attachment.php?attachmentid=51348&stc=1&d=1349027600.gif
 

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Oh how silly of me. Thanks.
 

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