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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _get_b(self):
 """Return my Y-intercept. I probably don't really hit the left edge of the window, but this is where I would, if I were long enough. """

        orig = self.origin
        dest = self.destination
        (ox, oy) = orig.pos
        (dx, dy) = dest.pos
        denominator = dx - ox
        x_numerator = (dy - oy) * ox
        y_numerator = denominator * oy
        return ((y_numerator - x_numerator), denominator)