6 Which three points are on the plane 2x 7y 3z 5 0 P 4 3 6 2 0 0 0 and R 3 1 2 b P 1 0 1 Q 2 2 3 and R 3 1 2 P 1 0 1 Q 3 1 2 and R 4 3 6 d P 3 1 2 Q 4 3 6 and R 5 0 2 27 What is the vector equation of the line with parametric equations x 2t 7 y 3t 2 t R 7 2 s 2 3 s eR c 7 2 7 s 3 2 SER b r 2 3 s 7 2 s R d none of the above