1) Determine the point of intersection between Line L: r=(-2,1,2) + t(1,-1,3) and a plane : x+4y+z-4=0 2) Determine the point of intersection between a plane : 2x-5y+z-6=0 and the line L: =2+S, y=2+2s , z=9+8s 3) Determine the point of intersection between Line L: ((+1)/6)= ( (3-y)/-1)= ((z-4)/-2) and : x+2y-z+29=0 4)Determine the point of intersection between the following lines L1: x=13t+4, z=5t, y=1-5t , and L2: r= (3,1,5)+ s(4,-1,2) SER