Khan Academy
Khan Academy: Algebra: Applying Quadratic Functions 1
Video solving an application problem that uses a quadratic function to represent a cable that connects two towers. Problem is solved by finding the vertex of the parabola and applying that information. [4:39]
Khan Academy
Khan Academy: Algebra: Quadratic Functions 2
Video defining the vertex and axis of symmetry for a parabola. 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. Axis of...
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: 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.