How to Find Discontinuities Without a Calculator?

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  • Thread starter Thread starter DieCommie
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    Discontinuity
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Discussion Overview

The discussion revolves around finding the discontinuities of the function \(\frac{3x+1}{x^2+7x-2}\) without the use of a calculator. Participants explore methods for identifying points where the function is undefined, focusing on mathematical reasoning and historical context.

Discussion Character

  • Homework-related
  • Exploratory
  • Technical explanation

Main Points Raised

  • One participant asks how to find the discontinuities of the given function without a calculator, indicating it is a homework question.
  • Another participant references historical methods, suggesting that similar problems were solved by Arab mathematicians and hints at the potential use of a square root symbol.
  • A participant suggests considering when a fraction is undefined as a way to approach the problem.
  • One participant expresses a lack of confidence in their math skills but realizes they may need to apply the quadratic formula manually to find exact answers.

Areas of Agreement / Disagreement

The discussion does not reach a consensus on a specific method for finding discontinuities, and multiple approaches are suggested without resolution.

Contextual Notes

Participants express uncertainty about their mathematical abilities and the methods required to solve the problem, indicating a reliance on historical context and manual calculations.

Who May Find This Useful

This discussion may be useful for students seeking to understand how to identify discontinuities in rational functions and those interested in historical mathematical methods.

DieCommie
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How can i find the discontinuitys of [tex]\frac{3x+1}{\ x^2+7x-2}[/tex] without a calculator?

This is an even numbered homework question to which the teacher says he won't help us and there is no answer in the book, plus we are not allowed to use calculators.
 
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hows your history? i believe this problem was solved by the arabs many hundreds of years ago.

hint: you may have to use a square root symbol.
 
Think of when a fraction is left undefined.
 
My history with math is I am very bad at it.

edit- OK I think I just have to use the quadratic formula by hand instead of on a calc so i get exact answers. wow I am stupid :smile:

Thx for the help guys.
 
Last edited:
mathwonk said:
hows your history? i believe this problem was solved by the arabs many hundreds of years ago.

hint: you may have to use a square root symbol.

:smile: nice one mathwonk, i'll save this one for next time :devil:
 

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