Handout
Free Math Help

Free Math Help: Finding Horizontal Asymptotes

For Students 9th - 10th Standards
The lesson explains how to find horizontal asymptotes. An explanation and examples are included.
Website
Other

Franklin University: Rational Functions and Asymptotes [Pdf]

For Students 9th - 10th Standards
This site provides an introduction to rational functions. Topics that are included are finding the domain of a rational function, finding the horizontal and vertical asymptotes and graphing rational functions. There are many worked out...
Handout
Richland Community College

Richland Community College: Rational Functions and Asymptotes

For Students 9th - 10th Standards
This site contains basic information on rational functions. Gives definition, how to find domain and roots, and how rational functions apply to asymptotes and holes in the graph.
Lesson Plan
Other

Nearpod: Rational Functions: Asymptotes & Graphing

For Teachers 9th - 10th
In this lesson plan, students will learn how to find holes, vertical asymptotes, and horizontal asymptotes graphically and algebraically.
Handout
Texas A&M University

Texas A&m Univ: Limits at Infinity Horizontal Asymptotes

For Students 9th - 10th
This site, created by a math professor at Texas A & M University provides notes about and defines different types of asymptotes.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Horizontal and Vertical Asymptotes

For Students 11th - 12th Standards
[Free Registration/Login may be required to access all resource tools.] Identifying and understanding asymptotes of rational functions
Website
Other

Xaktly: Rational Functions

For Students 9th - 10th Standards
On this site students explore the concept of rational functions. The site begins by looking at the parent function for all rational functions, which is a hyperbola. The other topics that are covered on the tutorial include horizontal...
Graphic
Analyze Math

Analyze Math: Graphs of Rational Functions

For Students 9th - 10th Standards
Students explore the graph of a rational function given by its formula. The tutorial examines vertical and horizontal asymptotes. The activity consists of examples with solutions.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Horizontal and Vertical Asymptotes

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Find the horizontal and vertical asymptotes of rational functions.
Unit Plan
CK-12 Foundation

Ck 12: Analysis: Limits and Asymptotes

For Students 11th - 12th
[Free Registration/Login may be required to access all resource tools.] Introduction to end behaviors, limits, asymptotes and limit notation.
Unit Plan
Mathematics Archives

Math Archives: Horizontal Asymptotes

For Students 9th - 10th Standards
This site uses an interactive LiveMath Notebook example to explain Horizontal Asymptotes. LiveMath Notebook may be downloaded for a free trial period to view these examples.
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New York University

Nyu: Courant Institute of Mathematical Sciences: Rational Functions [Pdf]

For Students 9th - 10th Standards
This site provides a detailed explanation of rational functions by looking at numerous examples. Topics that are covered include domain, horizontal asymptotes, vertical asymptotes and graphing rational functions.
Activity
Analyze Math

Analyze Math: Rational Functions (1)

For Students 9th - 10th Standards
Students explore the properties and graphs of rational functions. The tutorial examines the equations of rational functions, intercepts, vertical asymptote, and horizontal asymptotes. The activity consists of examples with detailed...
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Paul Dawkins

Paul's Online Notes: Limits at Infinity, Part I: Practice Problems

For Students 9th - 10th
Provides practice problems that review limits at infinity concentrating on polynomials and rational expressions and a brief look at horizontal asymptotes.
Activity
Cool Math

Coolmath: Graphing Rational Functions Horizontal and Slant (Oblique) Asymptotes

For Students 7th - 9th Standards
This algebra lesson explains how to find horizontal and slant (oblique) asymptotes when graphing rational functions.
Website
Cool Math

Coolmath: Rational Functions Vertical Asymptotes

For Students 9th - 10th
This CoolMath Resource provides and introduction to vertical asymptotes, a type of rational function.
Activity
Ministry of Education and Universities of the Region of Murcia (Spain)

Ministerio De Educacion Y Ciencia: Asintotas

For Students 9th - 10th Standards
In this unit you will learn to calculate the limits of a function and the equations of the vertical, horizontal and oblique asymptotes from its graph.
Unit Plan
Texas A&M University

Wtamu Virtual Math Lab: College Algebra: Graphs of Rational Functions

For Students 9th - 10th Standards
Use this tutorial to learn how to graph rational functions. Sample problems will guide you through finding the domain and asymptotes, and graphing the function on a coordinate plane.
Handout
Math Words

Math words.com: Asymptote

For Students 9th - 10th Standards
Definition and pictoral example for what an asymptote is.
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Math Notes and Math Tests

Pre Calculus Notes: Rational Functions [Pdf]

For Students 9th - 10th Standards
Students explore rational functions. Vertical asymptotes, horizontal asymptotes, slant asymptotes, and the zeros of a function are examined.
Unknown Type
University of Saskatchewan (Canada)

University of Saskatchewan: Algebra 2 Review

For Students 9th - 10th
A more advanced review of Algebra II concepts allows students to test their readiness for higher level math courses. Topics range from absolute value to rational expressions.
Activity
Texas Instruments

Texas Instruments: Graphing Rational Functions

For Teachers 9th - 10th Standards
The activity summarizes vertical asypmtotes, horizontal asymptotes, slant asymptotes, x-intercepts, y-intercept of rational functions.
Activity
Texas Instruments

Texas Instruments: Rational Functions

For Teachers 9th - 10th Standards
In this set of questions, students are asked to investigate rational functions to find vertical, horizontal, and oblique asymptotes as well as x- and y-intercepts. Questions are multiple choice and true/false with solutions provided.
Activity
Curated OER

Zona Land

For Students 9th - 10th Standards
Site explains asymptotes well using reciprocal function as example. Points out weaknesses that technology has when graphs are close to asymptotes.