Web Reference: Jul 23, 2025 · Function notation is a precise and simplified way to express the relationship between inputs and outputs. Instead of using the typical y = format, function notation replaces y with a function name, such as f (x), where f represents the function's name, and x is the input variable. Learn what function notation is, how to use it to represent different types of functions, and how to evaluate them. See examples of linear, quadratic, cubic, logarithmic, exponential, trigonometric and rational functions. Learn what function notation is and how to use it to indicate the outputs of a function. See examples of function notation with one or two variables and how to read it.
YouTube Excerpt: Learn how to evaluate functions in this video tutorial by Mario's Math Tutoring. We discuss
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