How to write the domain of a radical function

The video tutorial covers the concept of domain and range in mathematics, focusing on how to determine the domain of functions. It begins with an introduction to domain and range, explaining that domain refers to the set of possible X values, while range refers to Y values. The tutorial uses the function X^2 to illustrate that its domain is all real numbers, as any real number can be squared. The instructor then explains how to find the domain of more complex functions by identifying values that are not in the domain, using inequalities to solve for valid X values. The video concludes with examples of solving domain inequalities and writing them in interval notation.

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