I need the step

9. Determine the scalar equation of the plane that contains the z axis and the point P(4, - 3, 5). [4 Marks] 10. Determine the x intercept of the plane 4x + y - 3z + 12 = 0. [2 Marks] Application [12 Marks] 11. Find the distance between the skew lines r = [-3,1,0] + t[-1,4,3] and r = [6,4, -3] + u[4, -1, -2]. [4 Marks]