Varsity Tutors
Varsity Tutors: Hotmath: Practice Problems: Rational Functions
Eighteen problems present a variety of problems working with various aspects of rational functions. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View...
Khan Academy
Khan Academy: Practice: Recognize Functions From Graphs
Answer this question to see if understand how to determine a function based on a graph.
CK-12 Foundation
Ck 12: Algebra: Quadratic Functions and Equations
[Free Registration/Login may be required to access all resource tools.] Recognize a quadratic function as an equation in two variables with a specific form.
CK-12 Foundation
Ck 12: Algebra: Radical Equations With Variables on Both Sides
[Free Registration/Login may be required to access all resource tools.] This lesson covers solving radical equations with variables on both sides of the equation.
CK-12 Foundation
Ck 12: Analysis: Operations on Functions
[Free Registration/Login may be required to access all resource tools.] An overview of performing addition, subtraction, multiplication, and division of functions.
CK-12 Foundation
Ck 12: Algebra: Graphs of General Absolute Value Equations
[Free Registration/Login may be required to access all resource tools.] This lesson covers using a graphing calculator to graph an absolute value equation. Students examine guided notes, review guided practice, and attempt practice...
CK-12 Foundation
Ck 12: Algebra: Graphs of Rational Functions
[Free Registration/Login may be required to access all resource tools.] Graph and compare inverse variation equations and rational functions.
CK-12 Foundation
Ck 12: Algebra: Vertical Line Test
[Free Registration/Login may be required to access all resource tools.] Learn how to determine whether or not a relation is a function.
CK-12 Foundation
Ck 12: Analysis:
[Free Registration/Login may be required to access all resource tools.] Definition of a function and how to identify a function.
CK-12 Foundation
Ck 12: Algebra: Linear and Non Linear Function Distinction
[Free Registration/Login may be required to access all resource tools.] Distinguish between linear and non-linear functions
CK-12 Foundation
Ck 12: Function Rules for Input Output Tables: Soda Sugar Function Table
[Free Registration/Login Required] Students are given an input/output table and are to determine the inputs and write rules for the function. Click 'Challenge Me' to answer practice questions and click 'Learn More' for more information...
CK-12 Foundation
Ck 12: Algebra: Linear and Non Linear Patterns of Change
[Free Registration/Login may be required to access all resource tools.] Model and solve real-world problems involving patterns of change
Khan Academy
Khan Academy: Interpreting Graphs of Functions
Interpret the graphs of both linear and nonlinear functions. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
CK-12 Foundation
Ck 12: Analysis: Recursive Formulas
[Free Registration/Login may be required to access all resource tools.] This lesson introduces the concepts of relations and functions.
Purple Math
Purplemath: Functions Versus Relations
This lesson offers a thorough explanation of functions, domain and range, and how to find them. Includes multiple example problems and graphs. Great review tool for Algebra students.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Graph of Circle as a Function
Dr. Math, in a reply to a student question, describes how a circle can be a function.
Shodor Education Foundation
Shodor Interactivate: Lesson: Graphs and Functions
This lesson plan is directed at introducing learners to how to graph functions on the Cartesian coordinate plane. They will experience several categories of functions including lines and parabolas. Resources and interactive tools are...
Paul Dawkins
Paul's Online Notes: Algebra: Graphing and Functions
Students investigate functions and graphing. Topics examined are lines, circles, graphing functions, inverse functions, and combining functions. Class notes, definitions, and examples with detailed solutions are included. The class notes...
CK-12 Foundation
Ck 12: Algebra: Graphs of Functions Based on Rules
[Free Registration/Login may be required to access all resource tools.] Students learn to graph a function represented by a rule in the coordinate plane. Students examine guided notes, review guided practice, watch instructional videos...
Varsity Tutors
Varsity Tutors: Hotmath: Graphing Calculator Practice Problems: Relations and Functions
Practice using your graphing calculator for graphing relations and functions. If you get stumped or if you would like to check your work, then select the View Solution button, which is located directly under each problem.
CK-12 Foundation
Ck 12: Algebra: Graphs of Linear Functions
[Free Registration/Login may be required to access all resource tools.] Students learn to graph linear functions in the coordinate plane. Students examine guided notes, review guided practice, watch instructional videos and attempt...
University of Georgia
University of Georgia: Inter Math: Relation
Relation is defined and examples are given.
Lawrence Hall of Science
The Math Page: Topics in Precalculus
Designed to help high school students to learn precalculus, topics include the formal rules of algebra, rational and irrational numbers and mathematical induction.
Purple Math
Purplemath: Graphing Absolute Value Functions
Introduces the basic technique for graphing absolute-value functions, and illustrates a common mistake.