Modeling Rational Functions by Graphing

The video tutorial explains how to model rational functions by graphing. It begins with an introduction to rational functions, often expressed as x times y equals a constant. The tutorial uses a parking cost example to illustrate how the cost per person decreases as the number of people increases, demonstrating the inverse relationship. It also covers graphing these functions, showing that the graph approaches but never touches the axes. The tutorial concludes with a concrete mixer problem, modeling the relationship between area and depth using a rational function.

How can negative numbers be included in the graph of the function x times y equals 24?

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In the context of the concrete mixer problem, how is the area related to the depth of the concrete poured?

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