Free Parabolas Calculator - Determines the focus, directrix, and other related items for a parabola. This calculator has 1 input.
What 5 formulas are used for the Parabolas Calculator?
standard horizontal parabola equation is y2 = 4cx standard vertical parabola equation is x2 = 4cy If the x coefficient is negative, then parabola opens left If the x coefficient is positive, then parabola opens right
What 4 concepts are covered in the Parabolas Calculator?
directrix
line in a parabola not through the focus
focus
fixed point on the interior of a parabola used in the formal definition of the curve