What is the domain of

y=x
i don't remeber either that or
x=y

Chris is your name.

Your name is Chris.

Please look up "domain" in your textbook or your classroom notes.

i remeber now its y

no,

the domain of a function is the set of all numbers that you may use for the x of your equation.
the range of a function is the set of all the resulting y values

oh i was thinking of something else

To determine the domain of the equation y = x (or x = y), we need to identify the set of all possible values that x can take. In this case, since there are no restrictions or limitations mentioned in the equation, we can assume that x can be any real number.

Therefore, the domain of y = x (or x = y) is the set of all real numbers (-∞, +∞).