Example of a function with a domain (-∞, +∞) and a range (-∞, +∞)

Hello!

There are endless possibilities to name an example of a function with the domain and range as the set of all real numbers. A type of function that always has the domain and range as the set of all real numbers is linear functions. Some examples of linear function with the domain (-∞, +∞), and a range (-∞, +∞), are as follows:

y = x

y = 5/3x - 9

y = 4x + 3

However, the possibilities are endless. Those three examples are just some of them!