Looking for free graphing calculator for two-variable inequality

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Discussion Overview

The discussion revolves around finding a free online graphing calculator capable of graphing two-variable inequalities, specifically the inequality (1-b)/(1-b/2) < a, where a and b are probabilities. Participants share resources and tools that may assist in this task.

Discussion Character

  • Exploratory
  • Technical explanation
  • Homework-related

Main Points Raised

  • One participant seeks a free online graphing calculator for a specific two-variable inequality.
  • Another participant suggests checking a list of online calculators and mentions GeoGebra as a useful tool.
  • A participant confirms that GeoGebra successfully met their needs for graphing the inequality.
  • One participant expresses frustration with the process of finding free software, noting that some tools require significant practice to use effectively.
  • Another participant mentions the availability of HP Prime for desktop use as a free option.

Areas of Agreement / Disagreement

Participants generally agree on the usefulness of GeoGebra for the task, but there is no consensus on the overall quality and usability of various free graphing tools, as experiences and preferences vary.

Contextual Notes

Some participants express limitations in their experiences with different graphing tools, indicating that usability and effectiveness can vary significantly among available options.

Who May Find This Useful

This discussion may be useful for individuals looking for free graphing calculators, particularly for graphing inequalities in mathematics or related fields.

Hornbein
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TL;DR
Looking for free graphing calculator for two-variable inequality.
I have a two-variable inequality and wish to make a graph of the regions in which it is satisfied. Is any such took available online for free?

A great many free online graphing calculators are available, but I expect the great majority won't do what I want.

Specifically I want to find the regions in which (1-b)/(1-b/2) < a is true, with a and b being probabilities.

Alternatively, if someone has such a tool and can post the graph here that would be nice.
 
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GeoGebra did the trick with ease. Thanks a ton!

(I hate shopping for "free" software.)
 
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Hornbein said:
GeoGebra did the trick with ease. Thanks a ton!

(I hate shopping for "free" software.)
It's difficult, some are better, others not, and some require too much practice to use properly. I used them for my challenge threads when I needed a graphic and mspaint is rather limited. Buying software for, say 4 graphics per year is not really an option.
 
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You can download HP prime for desktop use, I believe, for free.
 

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