You can find the directional vector by subtracting the second points coordinates from the first points coordinates. These are called scalar parametric equations. Introduction To Vectors She Loves Math Parametric Equation Geometric Vector Measuring Angles Introduce the x y and z values of the equations and the parameter in t. Vector parametric equation . P 0 point P x y z v direction. We have The equation of plane passing through the point is GarryZ. Where a a a b b b and c c c are the coefficients from the vector equation r a i b j c k rabold ibbold jcbold k r a i b j c k. 0 0 0 These are the parametric equations of a line. 1 a vector equation of the line is xyz 2. A point and a directional vector determine a line in 3D. Xyz 56. Finding equation of a line in 3d. So plug in the coordinates for the vertex into the parametric equations and solve for t t. V total x 2 y 2. 18 t 37. From this we can get the parametric equations of the line. The equatio...