Learn how to evaluate a rational function for different values

The video tutorial explains how to evaluate functions by substituting different input values into a given rule to determine the output. It covers specific examples, such as evaluating F of -2, F of 0, and F of 1, highlighting the concept of undefined results when dividing by zero. The tutorial emphasizes the general process of function evaluation, noting that inputs can be numbers, letters, expressions, or even other functions. The instructor encourages understanding the process as it will become more complex in future lessons.

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