How can I make x the subject in this formula?

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  • Thread starter Thread starter Dordie.!!x
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Discussion Overview

The discussion revolves around the rearrangement of the equation y = x² to isolate x as the subject. Participants explore different interpretations and methods for expressing x in terms of y, considering various mathematical contexts.

Discussion Character

  • Homework-related, Mathematical reasoning, Conceptual clarification

Main Points Raised

  • One participant asks for help in rearranging the equation y = x² to make x the subject.
  • Another participant suggests that x can be expressed as x = √y.
  • A different viewpoint introduces the absolute value, stating abs(x) = y leads to ±√y = x.
  • One participant comments humorously without contributing to the mathematical discussion.
  • Another participant notes that the context matters, indicating that if finding the inverse of a function, one might express x as √y while ignoring the negative solution.

Areas of Agreement / Disagreement

Participants present multiple approaches to isolating x, indicating that there is no consensus on a single method or interpretation, particularly regarding the treatment of the negative solution.

Contextual Notes

There are assumptions about the context in which the equation is being rearranged, particularly regarding whether negative values of x should be considered.

Dordie.!!x
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Help!

How do i rearrange this equation to make x the subject?

y=xsquared
 
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[tex]y=x^2[/tex]
[tex]x=\sqrt y[/tex] ?
 
abs(x)=y
+or- sqrt y=x
 
lol :) :) :)
 
Depends on the context. If it is to find the inverse of a function, then it is just SQRT(y)=x - ignoring the negative part...
 

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