4. f(x)
In mathematics, f(x) is a notation used to represent a function
In mathematics, f(x) is a notation used to represent a function. A function is a relationship between two sets of elements, known as the domain and the range.
The notation f(x) specifically represents the value of the function f at a particular value x in the domain. It is common to think of f(x) as an output or result that is obtained when the input x is plugged into the function.
For example, let’s consider the function f(x) = 2x + 3. This function takes an input x, multiplies it by 2, and then adds 3 to the result. So, if we want to find the value of f at x = 5, we can substitute it into the function: f(5) = 2(5) + 3 = 13. Therefore, f(5) = 13.
The notation f(x) is widely used in algebra, calculus, and other branches of mathematics to represent various functions. It helps us understand and analyze the relationship between the input and output of a function.
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