This math topic focuses on identifying the negative inverse of a given decimal or integer, which is a foundational concept in the broader unit of slopes and perpendicular lines. The problems involve calculating the negative inverses of various numerical values, such as -1, 0.5, and -0.333, and selecting the correct answer from multiple choices. These skills are critical in understanding relationships between slopes of perpendicular lines in geometry and advanced algebra.

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