Functions assign outputs to inputs. The domain of a feature is the set of all possible inputs for the characteristic. For example, the domain of f(x)=x² is all real numbers, and the area of g(x)=1/x is all real numbers except for x=zero. We can also outline special features whose domain names are extra limited.
The area of a characteristic is the set of numbers which could pass into a given characteristic. In different phrases, it is the set of x-values that you can placed into any given equation. The set of viable y-values is called the range
