This math topic focuses on identifying and writing inequalities that describe the domain or range of functions, as represented on number lines. Problems involve interpreting segments and/or points on number lines and translating these visual representations into inequalities, including scenarios using union to denote multiple disjoint intervals. This helps learners practice critical thinking in converting visual data into mathematical expressions while understanding the concept of domain and range in functions.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.