CK-12 Foundation
Ck 12: Algebra: The Quadratic Formula: Deriving and Using the Quadratic Formula
[Free Registration/Login may be required to access all resource tools.] This lesson covers deriving the quadratic formula and using it to solve any quadratic equation.
Math Planet
Math Planet: Algebra I: Quadratic Equations: The Quadratic Formula
Provides an explanation, examples, and a video lesson all related to the quadratic formula. [2:45]
Math Medics
S.o.s. Math: Quadratic Formula: Completing the Square
This tutorial explains the quadratic formula by reviewing its origin from the process of completing the square. Includes examples and a few exercises.
Cool Math
Coolmath: The Quadratic Formula
Reference material and practice problems using the quadratic formula.
Texas A&M University
Wtamu Virtual Math Lab: Beginning Algebra: Formulas
This tutorial will show you how using formulas can help you solve problems. Include formulas for various geometric shapes and steps showing how to use them.
Lawrence Hall of Science
The Math Page: Skill in Algebra: Quadratic Equations
Here is a site that clearly and thoroughly explains the quadratic equations, including how to solve them by factoring, completing the square, and using the quadratic formula. There are example problems solved, problems for the student to...
Khan Academy
Khan Academy: Algebra I: Explicit Formulas for Arithmetic Sequences
Solve problems such as: The first four terms in an arithmetic sequence are 12, 5, -2, and -9. Find an explicit formula for the sequence. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a...
Khan Academy
Khan Academy: Algebra I: Explicit Formulas for Geometric Sequences
Solve problems such as: The first four terms in a geometric sequence are 1/3, 1, 3, and 9. Find an explicit formula for the sequence. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video...
Khan Academy
Khan Academy: Interpret Units in Formulas
Determine the appropriate unit of a quantity based on a formula containing that quantity. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Recursive Formulas for Arithmetic Sequences
Find the recursive formula of an arithmetic sequence given the first few terms.
CK-12 Foundation
Ck 12: Algebra: Determining the Equation of a Line
This comprehensive study guide highlights the main terms and formulas needed to determine the equation of a line. Examples are included.
CK-12 Foundation
Ck 12: Algebra: Absolute Value Equations and Inequalities Study Guide
This comprehensive study guide highlights the main terms and formulas needed to understand absolute value equations and inequalities. Examples are included.
CK-12 Foundation
Ck 12: Algebra: Linear Systems: Solve by Graphing & Substitution
This comprehensive study guide highlights the main terms and formulas needed to review linear systems, specifically solving by graphing and substitution. Examples are included.
CK-12 Foundation
Ck 12: Algebra: Number Lines Study Guide
This comprehensive study guide highlights the main terms and formulas needed to review number lines. Examples are included.
Khan Academy
Khan Academy: Quadratic Formula
Solve quadratic equations using the quadratic formula. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Wyzant
Wyzant: Solving Using the Quadratic Formula Worksheet
The practice sheet reviews how to solve equations using the quadratic formula. The resource consists of 20 questions with answers available.
Texas A&M University
Wtamu Virtual Math Lab: Intermediate Algebra: Formulas and Problem Solving
Using this tutorial, you'll learn how to solve a formula for a variable and how to solve word problems involving formulas.
Khan Academy
Khan Academy: Explicit Formulas for Geometric Sequences
Solve problems such as: The first four terms in a geometric sequence are 1/3, 1, 3, and 9. Find an explicit formula for the sequence.
CK-12 Foundation
Ck 12: Algebra: The Discriminant
[Free Registration/Login may be required to access all resource tools.] This lesson uses the discriminant to determine how many real solutions a quadratic equation has.
Khan Academy
Khan Academy: Algebra Ii: Graphs of Rational Functions
Determine which of four graphs fits the formula of a given function. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Texas A&M University
Wtamu Virtual Math Lab: College Algebra: Quadratic Equations
A detailed tutorial that will guide you through various methods for solving quadratic equations: factoring, square root, completing the square, and quadratic formula. Follow step-by-step examples, view video problem-solving...
Purple Math
Purplemath: Systems of Non Linear Equations: Definitions
This Purplemath lesson provides formulas, equations, graphs and explanations of systems of equations.
Texas A&M University
Wtamu Virtual Math Lab: College Algebra: Geometric Sequences and Series
Learn what a geometric sequence is and how to perform several related tasks: find the nth term, write the formula for the nth term, and calculate a finite geometric series. This tutorial offers definitions, example problems with...
Texas A&M University
Wtamu Virtual Math Lab: College Algebra: Sequences
An introductory tutorial on sequences, complete with important definitions, example problems and step-by-step solutions, and several practice exercises for you to complete and check. Provides good explanations and examples of arithmetic,...