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3.2: Function Notation

Last updated

Jan 4, 2023
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- 3.1: Function Definition
- 3.3: Evaluating a Function

Victoria Dominguez, Cristian Martinez, & Sanaa Saykali
Citrus College via ASCCC Open Educational Resources Initiative

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Functions are written as ” $f(x)$ = an algebraic expression”. Since $y = f(x)$ , $f(x)$ is the same thing as $y$ . This notation expresses $x$ as the input into the function, and $f(x)$ as the output from the function.

$f(x)$ does NOT mean $f ∗ x$ !!

The most common function names are $f(x)$ , $g(x)$ or $h(x)$ , although others may be used such as $j(x)$ , $k(x)$ or $m(x)$ .

Most of the time, a function is called $f(x)$ .

There are no examples or homework in this section.

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