Calculation of intersections between line segments

Question

There\'s a lot of questions about intersections between line segments here at stackowerflow and here is one more! Sorry, but I need help to understand how to calculate inter

Answer 1

public void fixData()
{
    slope = (p2.getY() - p1.getY()) / (p2.getX() - p1.getX());
    yInt = p1.getY() - slope * p1.getX();
    xInt = (-yInt) / slope;
}