x=1 - 2t 27. In 3-space, find the distance between the skew lines { y = 1 + t and [x, y, z] = [4, 7, 1] + t [1, 4, 2]. Z = 4t [4 Marks] (x = 7-t 28. Determine the intersection point of the line ) y = 2 + t and the plane mr: x + 2y + 3z - 15 = 0 z =4-3t [4 Marks]