Curated OER
How Do You Solve a Quadratic Equation with Two Solutions by Graphing?
There are many ways to solve a quadratic equation. Let's check out how to solve a quadratic equation by graphing. But first, let's find the axis of symmetry and the vertex before making a table of values. Write the values as ordered...
Curated OER
Physics - Spherical and Parabolic Mirrors
Intended for learners with a solid understanding of algebra, physics, and scientific language, this clip describes the differences and functions of spherical and parabolic mirrors. This clip is not so much about telescopes but about...
Khan Academy
Khan Academy: Graphing a Quadratic Function
Demonstrates how to graph a quadratic function by creating a table of values. This video also appears in the Algebra: Functions strand. [6:03]
Khan Academy
Khan Academy: Algebra: Quadratic Functions 3
Video graphing a parabola by plotting the roots, vertex and axis of symmetry. Roots of the quadratic function are found by factoring. Vertex of the parabola is found by three different methods: taking the midpoint of the roots, finding...
Khan Academy
Khan Academy: Algebra: Quadratic Functions 1
Video graphing a quadratic function by evaluating it for seven different values and plotting the resulting points. [4:04]
Khan Academy
Khan Academy: Algebra Ii: Quadratics and Shifts
Demonstrates solutions to four problems. Problems address understanding of quadratic equations, ways to solve quadratic equations, and translations of graphs of quadratic equations. Practice problems available. [11:53]
Khan Academy
Khan Academy: Algebra Ii: Examples: Graphing and Interpreting Quadratics
Demonstrates solutions to three problems. Problems address understanding of graphs of quadratic equations and translations of graphs of quadratic equations. [11:31]
Khan Academy
Khan Academy: Algebra: Ca Algebra I: Quadratic Roots
Demonstrates solutions to problems #58-62 of California Algebra I released state test questions. Problems address an understanding of quadratic equations including identifying zeros from a graph, graphing quadratic equations, determining...
Khan Academy
Khan Academy: Quadratic Equations: Graphing a Parabola With a Table of Values
Demonstrates how to graph a quadratic function by creating a table of values. [7:03]
Khan Academy
Khan Academy: Graphing Quadratics: Applying Quadratic Functions 2
Video solving an application problem by finding a quadratic equation to represent the distance of a diver above the water based on his time in the air by determining his average velocity.
Khan Academy
Khan Academy: Graphing Quadratics: Applying Quadratic Functions 3
Video solving an optimization application problem by finding a quadratic equation to represent the profit for a given product based on its selling price.
Khan Academy
Khan Academy: Solving and Graphing Quadratics: Roots and Vertex of a Parabola
Video graphing a parabola by plotting the roots, vertex and axis of symmetry.
Khan Academy
Khan Academy: Graphing Quadratics: Applying Quadratic Functions 1
Video solving an application problem that uses a quadratic function to represent a cable that connects two towers.
Sophia Learning
Sophia: Graphing a Quadratic Equation (Parabola Anatomy)
This video lesson demonstrates how to graph a quadratic equation and provides definitions for key vocabulary related parabolas.
Sophia Learning
Sophia: Graphing a Quadratic Function When B=0
Students learn how to graph a quadratic function in this video lesson. The tutorial consists of a detailed example that explores the mathematics concept.
Sophia Learning
Sophia: Quadratic Equations With One Solution
The mathematics resource includes a video tutorial about quadratics. The lesson discusses how to identify from the graph of a quadratic equation when there is only one real solution.
Khan Academy
Khan Academy: Parabola Vertex and Axis of Symmetry
Video defining the vertex and axis of symmetry for a parabola. The vertex is found for a specific function by completing the square to change the equation from standard form to vertex form and then reasoning through the equation.
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.
Khan Academy
Khan Academy: Quadratic Odds and Ends/ Quadratic Roots
This video shows working with quadratic equations including identifying zeros from a graph, graphing quadratic equations, determining the number of x-intercepts and solving application problems.