This math topic practices identifying and representing the domain and range of functions on a number line, with a focus on intervals that include unions. Problems require visualization and interpretation of interval notation and translating these intervals correctly onto a graphical number line representation. Multiple-choice answers are provided, where each question challenges the understanding of open, closed, and infinite intervals combined through union operations. This enhances the learner's ability to deal with complex range and domain specifications in a visual format.

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