How can I set a domain of all the real numbers except a particular number in Geogebra?
So I want to find the inverse of e(x) = x / (-x + 2). This function has all the real numbers except 2, where is undefined. What I tried to do was to do an if-statement saying (if x != 2, x / (-x +2)), but it stills give me undefined. Is there a way to plug the domain of this function? Without this value it should have indeed an inverse.