This math topic focuses on converting inequality expressions of domains and ranges of functions into interval notation, particularly when dealing with expressions that do not involve unions. Students are given a series of inequality expressions and asked to select the correct interval notation for each from multiple choices. The expressions involve different types of inequalities, including strict inequalities, non-strict inequalities, inequalities with infinite boundaries, and compound inequalities involving variables typically denoted as X or Y. This topic is designed to enhance students' understanding of how domains and ranges are defined within the context of basic function theory.