3. Using matrices, determine if and how the following planes intersect. If they intersect at a single point, determine the point of intersection. If they intersect along a single line, find the parametric equations of the line of intersection. Otherwise, just state the nature of the intersection. Show all of your work. [10 marks] 3x - 3y - 2z = 14 5x + y - 6z = 10 x - 2y + 4z = 9