- #1

Mentallic

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Is x=0 undefined? Obviously by the rule of powers, this equation is the same as y=x, but I'm unsure if the point (0,0) exists in this equation or not.

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- Thread starter Mentallic
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- #1

Mentallic

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Is x=0 undefined? Obviously by the rule of powers, this equation is the same as y=x, but I'm unsure if the point (0,0) exists in this equation or not.

- #2

Tinyboss

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- #3

Mentallic

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It just seems to me that only sometimes this is undefined, depending on how you treat the problem.

Sort of like [tex]\sqrt{x^2}=|x|[/tex] while [tex](\sqrt{x})^2=x[/tex] and defined for only [itex]x\geq 0[/itex]

- #4

Tinyboss

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That rule explicitly requires [tex]x\ne0[/tex].

- #5

Mentallic

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Ahh yes, of course!

Thanks tinyboss

Thanks tinyboss

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