(1) (4 marks) Consider, in 2D, the intersection between one line L. defined two points P, and P2 and one line segment L2 defined by two points Qi and Q2. Both of them are represented using parametric form, where ui is the parameter for L1 and u2 is the parameter for L2. In the class, we have discussed some situations for the intersection between two line segments, in terms of uj and u2. For each of the following situations, show the range of u and u2. (b) (2 marks) Pi Q2 L2 Qi P2