Question 11 (1 point) Describe the solution of the following system in geometric terms: x - y+z =0 3x - 2y + 5z = 8 2x + y - 3z = -9 C Intersect in a common line O Two of the equations represent distinct parallel planes. All three lines are parallel C Intersect in one point Question 12 (1 point) Find the parametric equation of the equation below: = y 3 x = -2-7t y = 1+ 3t Ox =2+7t y = -1 - 3t O [x,y] = [2,-1] + 4[7,-3] O [x,y] = [-2,1] + 4[-7,3]