1. Find parametric equations for the line in the direction of the vector 7 - k and through the point (0, 1,0). 2. Find parametric equations for the line in the direction of the vector 5j + 2 k and through the point (5, -1, 1). 3. Find parametric equations for the line through the points (2,3, -1) and (5, 2, 0). 4. Find a parametrization for the line perpendicular to the plane z = 2x -3y + 7 and through the point (1, 1, 6). 5. Find a parametrization for the circle of radius 2 parallel to the ry-plane, centered at the point (0, 0, 1), and traversed counterclockwise when viewed from below. 6. Find a parametrization for the curve y = 2' in the ry-plane. 7. Parameterize the line through P = (2,5) and Q = (12,9) so that the points P and Q correspond to the parameter values t = 20 and t = 30, respectively. 8. Find an equation for the plane containing the point P = (2,3,4) and the line r = 1 + 2t, y =3-t, = =4+t. 9. Find parametric equations for the line perpendicular to the surface z = r' +y' at the point (1, 2, 5)