Why Solve Quadratics? Practical Examples of Their Use

  • Context: High School 
  • Thread starter Thread starter thetexan
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Discussion Overview

The discussion centers around the practical applications of solving quadratic equations, particularly in fields such as physics, engineering, and chemistry. Participants share their experiences and examples where quadratic equations are relevant, exploring both theoretical and applied contexts.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • One participant expresses a desire to understand the practical applications of quadratic equations while relearning foundational math concepts.
  • Another participant suggests that there are numerous practical uses for quadratic equations, implying that listing them all would be challenging.
  • A participant mentions that quadratic equations are frequently encountered in physics and engineering, particularly in scenarios involving buffers and weak acid-base situations in chemistry.
  • One contributor shares a personal experience of learning to solve quadratics to work on ray-sphere and ray-cylinder intersections for a ray tracer project.
  • A participant notes that differential equations involving second derivatives can be solved using characteristic polynomials of second degree, indicating a connection to natural phenomena.
  • Another participant reflects on the usefulness of solving quadratics and finding roots of polynomials as a significant part of their grade 11 math education.

Areas of Agreement / Disagreement

Participants generally agree on the relevance of quadratic equations in various practical contexts, but there is no consensus on a definitive list of applications or examples.

Contextual Notes

Some participants reference specific applications in physics, engineering, and chemistry, but the discussion does not delve into detailed examples or mathematical derivations, leaving some assumptions and contexts unspecified.

Who May Find This Useful

This discussion may be useful for students relearning algebra and seeking to understand the practical implications of quadratic equations, as well as professionals in STEM fields looking for connections between theory and application.

thetexan
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I'm going back and relearning algebra, geometry, and trig so I can learn calculus. Right now I'm on quadratic equations.

It sometimes helps to know why we learn something. Can someone give me an example when you would need to actually solve a quadratic equation in practical use?

tex
 
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thetexan said:
I'm going back and relearning algebra, geometry, and trig so I can learn calculus. Right now I'm on quadratic equations.

It sometimes helps to know why we learn something. Can someone give me an example when you would need to actually solve a quadratic equation in practical use?

tex
Too many throughout Physics and Engineering. Buffer and other weak acid-base situations for Chemistry.
 
I taught myself how to solve quadratics a few years before we learned about it at school, so I could solve ray-sphere and ray-cylinder intersections, as I wanted to write a ray tracer.
 
Differential equations that involve the second derivative can be solved using a characteristic polynomial of second degree ... If you don't know what are differential equations now it is sufficient to you know that they are models for different Natural phenomena ...
 
Of all the material I learned in grade 11 math, solving quadratics and finding roots of other polynomials has probably been the most useful.
 
Nice to know, thanks.
 

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