This math topic focuses on the understanding and visualization of function domains and ranges. It teaches how to interpret descriptions of sets of real numbers and depict them on a number line, with specific emphasis on unions of intervals. The questions present various conditions for real numbers, and students must select the correct number line representation corresponding to those conditions. Each problem includes options to identify whether the number line depiction accurately reflects the described domain or range, incorporating both separate intervals and combined conditions with unions.

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