Khan Academy
Khan Academy: Algebra: Quadratic Equations in Standard Form
Identifies the standard form of a quadratic equation and models how to put a given quadratic equation into standard form, ax^2 + bx + c = 0, and identify the values of a, b, and c. [2:21]
Khan Academy
Khan Academy: Factoring Quadratics: Example 1: Factoring by Grouping
In this video students learn about factoring trinomials with a non-1 leading coefficient by grouping.
Khan Academy
Khan Academy: Factoring Quadratics: Factoring Quadratic Expressions
Examples of factoring quadratics with a leading coefficient of 1.
Khan Academy
Khan Academy: Factoring Quadratics: Example: Basic Grouping
Factoring Trinomials by Grouping 1
Khan Academy
Khan Academy: Factoring Quadratics: Example 1: Factoring Quadratic Expressions
In this lesson students learn about factoring trinomials with a leading 1 coefficient.
Khan Academy
Khan Academy: Quadratic Odds and Ends: Ca Algebra I: Factoring Quadratics
This video demonstrates an understanding of factoring quadratic equations.
Sophia Learning
Sophia: Cubic Functions
Explore the term cubic function and assess learning with a quiz.
Sophia Learning
Sophia: Direct Variation
Explore what a direct variation is and assess learning with a quiz.
Sophia Learning
Sophia: Locating the Maximum and Minimum of a Parabola
Locate the maximum and minimum point on a quadratic function (parabola) and then take a quiz to assess learning.
Sophia Learning
Sophia: Quadratic Equations With One Solution
Use a graph to recognize when there is only one real solution of a quadratic equation. Assess learning with a quiz.
Sophia Learning
Sophia: Quadratic Functions Are Nonlinear
Quadratic functions are nonlinear functions that create parabolas when graphed.
Sophia Learning
Sophia: The Terms of a Quadratic Function
Explore the terms within a quadratic function and assess learning with a quiz.
Sophia Learning
Sophia: The Terms of a Quadratic Function
Explore the terms of a quadratic function and assess learning with a quiz.
Sophia Learning
Sophia: Quadratic Equations in the Real World
Use real world applications to set up and solve quadratic equations then take a quiz to check understanding. [18:35]
Other
How to Get the Equation of a Parabola Given Its Intercepts and a Point
This video by teacher Nathan Oldridge explains how to determine the quadratic equation of a parabola from its intercepts and a point on the graph. Video is accompanied by a running transcript. [5:54]
Virtual Nerd
Virtual Nerd: How Do You Write an Equation for a Quadratic With 3 Points?
This lesson shows how to write the equation for a parabola when given three points. [9:22]
Other
Nsccalp: Math: Finding the Equation Given Three Points (Quadratic Functions)
This video from the Nova Scotia Community College Adult Learning Program explains how to find a quadratic equation when given three points on its graph. [9:40]
Imagine Learning Classroom
Learn Zillion: Video: Understand Limitations of Using Zeros to Graph a Quadratic
In this lesson, you will learn the limitations of using zeros to graph a quadratic function by using functions with no zeros or real roots. [3:08]
Khan Academy
Khan Academy: Quadratic Odds and Ends: Quadratics and Shifts
Problems address understanding of quadratic equations, ways to solve quadratic equations, and translations of graphs of quadratic equations.
Other
Mario's Math Tutoring: What Is Interpolation and Extrapolation?
Learn the difference between interpolation and extrapolation in this free math video tutorial [2 mins, 42 secs]by Mario's Math Tutoring.
Sophia Learning
Sophia: Extrapolation: Lesson 2
This lesson introduces and defines extrapolation of data. It is 2 of 5 in the series titled "Extrapolation."
Sophia Learning
Sophia: Extrapolation: Lesson 3
This lesson introduces and defines extrapolation of data. It is 3 of 5 in the series titled "Extrapolation."
Sophia Learning
Sophia: Quadratic Formula and Complex Numbers
Explains how complex numbers are related to the quadratic formula, in particular talks about the determinant of the quadratic formula being a negative.
Sophia Learning
Sophia: Quadratic Formula and Complex Numbers
Explains how complex numbers are related to the quadratic formula, in particular talks about the determinant of the quadratic formula being a negative.