Constant Function Math
F x 1 x 1 2 2 x 2 3 f x 1 x 1 2 2 x 2 3.
Constant function math. The limit of a constant function according to the properties of limits is equal to the constant for example if the function is y 5 then the limit is 5. In general a constant function will be of the form. With a constant function for any two points in the interval a change in x results in a zero change in f x. Plot the graph of.
F x 1 f x 2 for any x 1 and x 2 in the domain. 1 2 3 for example the function y x 4 displaystyle y x 4 is a constant function because the value of y x displaystyle y x is 4 regardless of the input value x displaystyle x see image. Because of this a constant function has the form y b where b is a. Though it is one of the simplest type of functions it can be used to model situations where a certain parameter is constant and isn t dependent on the independent parameter.
Mathematically speaking a constant function is a function that has the same output value no matter what your input value is. Applications of the constant function. F x k f x k.