1. Consider two lines 4 :x1(s) =1[1,2,1] 4+ s[3, 5, 1], by x(t) = [-1,3,1] + [1, -4, 1] (3] (a) Show the two lines intersect by finding the point of intersection. [4] (b) Find a vector equation and a general equation of the plane that contains the two lines ; and #s. [4] 2. Find the equation of the line of intersection of the 2 planes, in vector and parametric forms: Pr:3x+4y+2=3 and Py:x+y+2=2