How to Evaluate Limits at Infinity | Polynomial & Rational Functions (Precalculus)

Confused about limits at infinity? In this video, you’ll learn how to evaluate limits of functions as x approaches infinity and negative infinity. We break down the concept of end behavior and show how it applies to polynomial and rational functions. You’ll learn simple strategies to determine what happens to a function over the long run, including how to identify horizontal asymptotes and compare degrees of polynomials. This lesson is perfect for precalculus students, Algebra 2 review, or anyone preparing for calculus. What you’ll learn: Evaluating limits as x → ∞ and x → -∞ End behavior of polynomial functions End behavior of rational functions How to find horizontal asymptotes Using leading terms to simplify limits #precalculus #limits #mathhelp #learnmath #calculusprep #algebra #mathtutorial #endbehavior #asymptotes #rationalfunctions #polynomials #studentsuccess #homeworkhelp #stemeducation #highschoolmath