Parabolas

Parabolas

1. What is a parabola? A parabola is a curve where any point is at an equal distance from: a fixed point (the focus ), and a fixed straight line (the directrix )

   • Focus is a given point
     • DIrectrix is a given line not through the focus

2. The vertex of a parabola is the point where the parabola crosses its axis of symmetry.

   • axis of symmetry is the line that runs down the parabola´s 'center'.

3. The equation of a parabola can be expressed in either standard or vertex.

   • Standard Form Equation The standard form of a parabola's equation is generally expressed: y=ax2+bx+c
   • Vertex Form of Equation The vertex form of a parabola's equation is generally expressed as: y = a(x-h)2+k

4. Axis of symmetry of a parabola.(n.d). In Math warehouse. Rectrieved form http://www.mathwarehouse.com/geometry/parabola/axis-of-symmetry.php

   • Parabola. (2017). In mathwords.com. Retrieved from http://www.mathwords.com/p/parabola.htm
     • The vertex of a parabola.(n.d). In Varsity tutors. Retrieved from https://www.varsitytutors.com/hotmath/hotmath_help/topics/vertex-of-a-parabola
   • APA References

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