How to evaluate a piecewise function given different values

The video tutorial explains piecewise functions, highlighting that they consist of multiple functions with different rules applied based on input values. It clarifies the concept by demonstrating how to choose the correct rule depending on whether the input is less than, greater than, or equal to a certain value. The tutorial includes examples to illustrate the application of these rules, showing calculations for different inputs and explaining the results.

What happens when the input of a piecewise function is greater than or equal to one?

Summarize how a piecewise function can be viewed as a combination of multiple functions.