constant function
A linear equation written in the form y = 0x + b or y = b
A constant function is a type of function in which the output or result is always the same, regardless of the input. It is a function that maps every element of the domain to a single constant value or output.
For example, a constant function f(x) = 3 always returns the value 3, no matter what value of x is input. Another example is the constant function g(x) = -5, where the output is always -5, irrespective of the value of x.
Constant functions can be useful in mathematics, particularly in calculus and differential equations, as they can simplify certain problems. They can also be used in computer programming, where a constant value is necessary and should not be changed.
In summary, a constant function is one in which the output does not depend on the input, and it always returns a fixed constant value.
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