This app is currently under development, it is open source, feel free to use the code.
INSTRUCTIONS:
Input a linear equation into the field in the top left in the format y = x + or - b
To input a quadratic equasion, use the quadratic fields inputting three different numerals. If coming from an equasion the numerals inputted (a, b, c) can be derrived from the following form of equasion: ax^2+bx+c = 0