♾️ap calculus ab/bc review

Interval

Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examWritten by the Fiveable Content Team • Last updated September 2025

Definition

An interval represents a range or segment on the number line between two points. It includes all numbers within those endpoints and may be open (excluding endpoints) or closed (including endpoints).