# Computing Limits at Infinity

The limits in sections 10.1 and 10.2 were limits in which the value of *x* approached some finite value. By writing

we were looking for the behavior of the function *f *(*x*) as *x* got closer and closer to the value *a*. In this section we’ll learn how to evaluate a second type of limit. In limits at infinity, we look at the behavior of the function as *x* gets more and more positive or as *x* gets more and more negative. We symbolize limits like this by writing

As with other limits, we may evaluate the limit with a table, graph, or using algebra.

**Read** in Section 10.4

- How do you evaluate a limit at infinity using a table or graph?
- How do you evaluate limits at infinity using algebra?

**Watch** Video Playlist