1.(a) Find a vector equation and parametric equations for the line through the point (2, 2.4, 3.5) and parallel to the vector <3, 2, -1>.
(b) Find an equation of the plane through the point (-1, 1/2, 3) with normal vector <1, 4, 1>.
(c) Find an equation of the plane through the point (2,0,1) and perpendicular to the line x = 3t, y = 2 - t, z = 3 + 4t.
(d) Find an equation of the plane through the point (1, -1, -1) and parallel to the plane 5x - y - z = 6.