Lacking – Quadratic Formula Solver Review

The app is simple. Input a, b, and c. It solves for roots and discriminant. Does not solve for the vertex. Does not support fractions. (0.33333... I get it, one third) Does not solve for any y value other than 0. Does not graph. Does not solve systems. I don't see how that (minus perhaps graphing) could take very long to program. 2 stars from an algebra 1 student.
Review by The one reviewing dude on Quadratic Formula Solver.