answer asap

(x = 4-s+t 5. Find a vector perpendicular to the plane It = y = 1+s-t z =1+s+t a) [1, -3, -4] b) [5, 5, 0] c) [2, 1, 1] d) none of these 6. Which is a correct direction vector for the 2-space line: Px - Qy - R = 0 a) [P, Q] b) [P, -Q] c) [Q, P] d) none of these 7. Determine the point that lies on the line L: [x, y, z] = [-1, 3, 5] + t[2, -1, -2] a) (-7, 5, 4) b) ( - 7 , 0 , - 1 ) c) (-7, 6, 11) d) none of these x =6-t x = 2+s 8. Find the intersection point of these lines: } y = 2 and By = 1+s Z =7-t z = 3+s a) (3, 2, 4) b) (2, 1, 3) c) (6, 2, 7) d) none of these 9 . Determine how the following planes intersect: m: x - 2y + 4z + 6 =0 and T2: 2x - 4y + 8z + 12 = 0 a) in a line b) are coincident c) in a point d) none of these 10. Determine how the following planes intersect: m1: x - 2y + 4z + 6 = 0 and 12: 3x - 6y + 12z + 16 = 0 a) in a line b) are coincident c) in a point d) none of these