4. (2 points) Consider the lines below. r = (2,3,0)+(3, -3,1) r = (5, 0, 1)+8(-3, 3,0) (a) Find the point at which the given lines intersect. (b) Find an equation of the plane that contains these lines. 5. (2 points) Consider the lines below. L₁: -3 = y-2 6 = 2-2 L2: = 2 212 y-6 2+1 15 = 6 (a) Determine whether the lines L1 and L2 are parallel, skew, or intersecting. (b) Find the distance between the lines.