what is a constant

In mathematics, a constant is a fixed value that does not change. It can be a number, decimal, fraction, or even a letter that stands for a fixed number. Constants can be used to define a constant function that always gives the same value and ignores its arguments). In algebra, constants are one of the types of terms used in an equation. A constant term is a number that stands alone with no variables beside it. For example, in the equation "x + 5 = 9", 5 and 9 are constants. Constants are important in mathematics because they provide a fixed reference point for calculations and allow for the creation of mathematical models that can be used to make predictions and solve problems).