Graph a parabola using conic sections with a horizontal axis of symmetry

This video tutorial explains how to graph a parabola by identifying its vertex, focus, and directrix. It covers the process of determining the type of parabola by examining which variable is squared, and how to use the equation to find the vertex coordinates. The tutorial also explains how to calculate the focus using the value of P and how to identify the directrix by understanding its relationship with the focus and vertex.

What is the definition of the directrix in relation to a parabola?

Describe the relationship between the directrix and the axis of symmetry of a parabola.