Web Reference: Function notation expresses a function by assigning it a name, typically f, g, or h, followed by its input variable enclosed in parentheses. The expression f(x) is read as "f of x" and represents the output value of the function f when the input is x. If you are dealing with more than 1 function, you still have to use y. However, with the function notation, you could use g (x) or h (x) to indicate other functions of x. Function notation gives a name to a function, and makes clear which variable is independent (that is, which is the variable for which you'll be picking input values). The name for the formula, such as A (for, say, the area of a square), is followed by a parenthetical, such as (s) (for the length of a side of the square), and is set equal to the for...
YouTube Excerpt: Learn how to evaluate functions in this video tutorial by Mario's Math Tutoring. We discuss
Net Worth Profile Overview
Using Function Notation What Is Net Worth 2026: Salary, Income & Wealth Net Worth & Biography
Estimated Worth: $72M - $78M
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Last Updated: April 3, 2026
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