(2 stars)


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10,000 - 50,000 downloads

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Would you like to ace your next test on quadratic functions?

"Parabola" tells you everything you ever needed to know about parabolas but were afraid to ask.

Enter a quadratic function in standard, vertex, or intercept form, and this application instantly displays:

- The orientation of the parabola
- The coordinates of the vertex
- The axis of symmetry
- The coordinates of the focus
- The equation of the directrix
- The x - intercepts
- The y - intercept

Since it's crucial for students to understand the concepts behind the formulas, "Parabola" includes a thorough explanation of the computations that are performed. Students and teachers will find this application to be indispensable.

I welcome all comments, questions, and suggestions:

I will answer your math questions for free on facebook:

Please check out my other Android apps:

ACT Math Prep
Algebra Pro
Calculus Pro
Finite Math Pro
Geometry Pro
Math Pro (6 math apps for $1.99!)
PreCalculus Pro
Probability Pro
SAT Math Prep
Statistics Pro

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Recently changed in this version

Had to change the keyboard to alpha-numeric because some devices don't show a decimal point or negative sign otherwise. Believe me, I'm not happy about it either.

Comments and ratings for Parabola
  • (32 stars)

    by Michael Tweet on 07/06/2014

    This device uses a touch keyboard or a touch numeric pad and was having issuses with the previous version, but now, with the update, I can more easily input a negative value or a decimal point or even *le gasp* BOTH for variables. Thanks, Larry!

  • (32 stars)

    by SAI LAY on 09/09/2013