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]
Virtual Nerd
Virtual Nerd: Algebra 2: What Is the Minimum of a Quadratic Function?
This tutorial takes a look at the minimum of a quadratic function which is the lowest point on the graph of a U-shaped function. [1:59]
Virtual Nerd
Virtual Nerd: Algebra 2: What Is the Maximum of a Quadratic Function?
This tutorial takes a look at the maximum of a quadratic function which is the highest point on an upside-down U-shaped graph. [1:47]