compter graphics

3. Parametric Line Representation (Non-programming) Given two points in 2D, P1 = (X1, y) and P2 = (x2, y2), that define a line: (a) Write the parametric line expression in vector form: Pla) = (b) Write the parametric line expression in individual coordinates: x(a) = y(a) = (C) Give another pair of points in 2D, P3 = (x3, y3) and P4 = (x4, y4), defining another line, compute the intersection point between the two lines using the parametric representation. (d) The intersection point may or may not be between P, and P2. How do you determine if the intersection point is between P, and P2 on the first line? 3. Parametric Line Representation (Non-programming) Given two points in 2D, P1 = (X1, y) and P2 = (x2, y2), that define a line: (a) Write the parametric line expression in vector form: Pla) = (b) Write the parametric line expression in individual coordinates: x(a) = y(a) = (C) Give another pair of points in 2D, P3 = (x3, y3) and P4 = (x4, y4), defining another line, compute the intersection point between the two lines using the parametric representation. (d) The intersection point may or may not be between P, and P2. How do you determine if the intersection point is between P, and P2 on the first line