Lesson#16 <br />Symmetric Form or Parametric Form of equation of straight line (2) <br />THEOREM: Equation of a straight line whose inclination is a and a point of line is Q(x1, y1) is written as <br />x - x1/cos a = y - y1/sin a = r <br />Here "r" is parameter and is directed distance between given point and arbitrary point.
