Mark H. answered • 10/17/19
Tutoring in Math and Science at all levels
I'm confused.....we normally speak of the domain and range for a function (just one of each). To be sure, a domain definition can have several components.
The simplest function is y = x. For this the range and domain are simply "all real numbers". This means that the values can be anything between +∞ and -∞. Thus, each can have an infinite number of values.
If this doesn't answer your question, then we may need some clarification.
Mark H.
I LIKE it....10/18/19
Arturo O.
Student, is this question worded correctly? Perhaps the question was to find a real world example where the domain is infinite but the range is finite.10/18/19
Arturo O.
If that is the case, then consider a function like f(x) = e^(-x^2) Note the domain of this function is infinite, but the range is finite.10/18/19
Mark M.
True Mark, and difficult to think of anything in nature that goes to - infinity. There was a young man from Trinity who tried to take the square root of infinity. The number of digits, gave him the fidgets, he dropped math and took up Divinity.10/18/19