How to identify vertex, focus and directrix for a parabola conic sections

The video tutorial covers the identification and analysis of conic sections, specifically focusing on parabolas. The teacher explains how to rewrite equations to identify the vertex, focus, and directrix. The tutorial includes calculations for determining the direction of the parabola and understanding the axis of symmetry. The session concludes with a Q&A segment to address student queries.

What does the negative sign in the equation indicate about the direction in which the parabola opens?

Describe the process of finding the equation of the directrix for a parabola.