This video lecture from Geometry (F.Sc. second year Mathematics) covers: Question number 21 of exercise 4.3. In the solution of this question we see three forms of equation of a line (Slope intercept form, Two intercepts form and Normal form) and conversion of one form to another. Find more e-learning material and educational video lectures in Urdu at maktab.pk. These videos are free to use for promotional and commercial purpose by keeping the credits to Maktab.