Written by the Fiveable Content Team • Last updated August 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated August 2025
Definition
The z-axis is the vertical line on a three-dimensional coordinate system. In terms of volume calculations using Washer Method, it serves as the axis around which the region between two curves is being revolved.