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• • Contributed by David Arnold
• Retired Professor (Mathematics) at College of the Redwoods

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• 5.1: The Parabola
In this section you will learn how to draw the graph of the quadratic function defined by the equation f(x)=a(x−h)2+k. You will quickly learn that the graph of the quadratic function is shaped like a "U" and is called a parabola. The form of this quadratic function is called vertex form, so named because the form easily reveals the vertex or “turning point” of the parabola. Each of the constants in the vertex form of the quadratic function plays a role.
• 5.2: Vertex Form
• Section 3:
• Section 4:
• Section 5:
• Section 6: