There are many techniques for finding limits that apply in various conditions. It's important to know all these techniques, but it's also important to know when to apply which technique.

The best way to start reasoning about limits is using graphs. Learn how we analyze a limit graphically and see cases where a limit doesn't exist.

Practice Creating tables for approximating limits Get 3 of 4 questions to level up!

Limits describe the behavior of a function as we approach a certain input value, regardless of the function's actual value there. Continuity requires that the behavior of a function around a point …

In this video, we learn how to find the limit of combined functions using algebraic properties of limits. The main ideas are that the limit of a product is the product of the limits, and that the limit of a quotient is …

Sal explains how you can easily find limits of functions at points where the functions are continuous: simply plug in the x-value into the function! Later we will learn how to find limits even when the …

Limits describe how a function behaves near a point, instead of at that point. This simple yet powerful idea is the basis of all of calculus.

In this video we explore strategies for determining which technique to use when finding limits. We also highlight the importance of understanding various methods, such as direct substitution, factoring, …

In this unit, we'll explore the concepts of limits and continuity. We'll start by learning the notation used to express limits, and then we'll practice estimating limits from graphs and tables. We'll also work on …

In this video, we learn to estimate limit values from graphs by observing the function's behavior as x approaches a value from both left and right sides. If the function approaches the same value from …