what does mean f(x)

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In mathematics, “f(x)” represents a function where “x” is the input value and “f” is the name of the function. It’s a way to express the relationship between the input and output values of a function.

Usage and Example

Here’s an example illustrating the use of “f(x)” in a mathematical expression:

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    f(x) = 2x + 3
    Translation: The function "f" takes an input "x" and returns 2 times "x" plus 3.

In this example, “f(x)” defines a linear function.

Mathematical Representation

“f(x)” is a fundamental notation in mathematics to denote functions and their behavior.


“f(x)” is a powerful notation that encapsulates the essence of functions in mathematics, aiding in the analysis and understanding of various mathematical concepts.

Educational Encyclopedia