f(x) equal to any other real number you can think about.Here are some of the examples of constant functions: In general, we can define a constant function as a function that always has the same constant value, irrespective of the input value. We need to note here that the value of f(x) will always be 'k', and is independent of the value of x. The domain of the function is the x-value and is represented on the x-axis, and the range of the function is y or f(x) which is marked with reference to the y-axis.Īny function can be considered as a constant function if it is of the form y = k, where k is a constant and k is any real number. Graphically a constant function is a straight line, which is parallel to the x-axis. A constant function is a function having the same range for different values of the domain.
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