It can be anything that you choose it to be. It can be the whole real line or any proper subset - including disjoint subsets.
It can be matrices, all of the same dimensions (Linear Algebra is based on them) or a whole host of other alternatives.
The term "domain" refers to the set of all possible input values for a function. If a function's domain is all real numbers, it means that you can input any real number into the function without encountering restrictions such as division by zero or taking the square root of a negative number. Examples of functions with this domain include linear functions and polynomial functions. However, specific functions may have restricted domains based on their mathematical characteristics.
They are not. A vertical line is not a function so all linear equations are not functions. And all functions are not linear equations.
Quadratic functions have a restricted domain because they can produce complex or undefined values for certain inputs, particularly when considering their roots or specific contexts, such as real-world scenarios where negative values may not be meaningful. In contrast, linear functions have a constant rate of change and are defined for all real numbers, allowing them to extend infinitely in both directions without encountering issues of undefined values. This inherent difference in their mathematical structure leads to the domain restrictions seen in quadratics.
Linear equations are a small minority of functions.
Most functions are not like linear equations.
They both are constant and they also have a specific domain of the natural number.
All linear equations are functions but not all functions are linear equations.
The term "domain" refers to the set of all possible input values for a function. If a function's domain is all real numbers, it means that you can input any real number into the function without encountering restrictions such as division by zero or taking the square root of a negative number. Examples of functions with this domain include linear functions and polynomial functions. However, specific functions may have restricted domains based on their mathematical characteristics.
They are not. A vertical line is not a function so all linear equations are not functions. And all functions are not linear equations.
Linear equations are always functions.
Quadratic functions have a restricted domain because they can produce complex or undefined values for certain inputs, particularly when considering their roots or specific contexts, such as real-world scenarios where negative values may not be meaningful. In contrast, linear functions have a constant rate of change and are defined for all real numbers, allowing them to extend infinitely in both directions without encountering issues of undefined values. This inherent difference in their mathematical structure leads to the domain restrictions seen in quadratics.
Linear equations are a small minority of functions.
Most functions are not like linear equations.
A linear equation is a special type of function. The majority of functions are not linear.
The function ( f(x) = -3x + 6 ) is a linear function. Its domain is all real numbers, expressed as ( (-\infty, \infty) ). The range is also all real numbers, as linear functions can take any value depending on the value of ( x ). Therefore, both the domain and range are ( (-\infty, \infty) ).
There are linear functions and there are quadratic functions but I am not aware of a linear quadratic function. It probably comes from the people who worked on the circular square.
identity linear and nonlinear functions from graph