Focus and Directrix of a Parabola

What is the Standard Form of the Equation of a Parabola With a Vertex (h,k)?

Given the vertex and one other point on a parabola, you can write the equation of the parabola in standard form. Watch this tutorial to find out how!
What is a Parabola?

A parabola is much more than just the graph of a quadratic. This tutorial shows you various definitions of a parabola and even shows you horizontal parabolas! Take a look!
What is a Solid?

Understanding solids is a building block for finding their lateral area, surface area, and volume. In this tutorial, you'll see examples of solids and learn their different parts. Take a look!