/src/main/java/org/htmlunit/util/geometry/Line2D.java
final double testY = x * slope_ + yIntercept_;
final double testY = slope_ * x + yIntercept_;
if (isVertical_) { if (Math.abs(startX_ - x) > epsilon) { return false; } } else { <extra_id_0> if (Math.abs(y - testY) > epsilon) { return false; } if (x < startX_ && x < endX_ || (x > startX_ && x > endX_)) { return false;