Understand quadratic equation and it's solution using graph
If we change the values of a, b and c using their respective slide bars we will see that position of the graph (parabola) gets changed. Here a, b and c are coefficients of the quadratic function y=ax^2+bx+c, and roots of the equation ax^2+bx+c=0 are α, β= (-b±(b^2-4ac)^(1/2))/2a