How to Graph a Horizontal Parabola
How Graphs of Derivatives Differ from Graphs of Functions
How to Identify the Four Conic Sections in Equation Form

How to Graph a Vertical Parabola

Deal with negative coefficients in parabolas.

Be aware of negative coefficients in parabolas. If the parabola is vertical, a negative coefficient will make the parabola open downward.

The figure can be referred to as the “martini” of parabolas. The graph looks like a martini glass: The axis of symmetry is the glass stem, the directrix is the base of the glass, and the focus is the olive. You need all those parts to make a good martini and a parabola.

  • Add a Comment
  • Print
  • Share


Promoted Stories From Around The Web

blog comments powered by Disqus
2 Ways to Graph a Circle
How to Find the Equation of Asymptotes
How to Graph a Hyperbola in 5 Steps
How to Change between Polar and Cartesian Coordinates
How to Identify the Min and Max on Vertical Parabolas