18. Equation of the plane passing through the points (2,2,1) and(9,3,6), and I to the plane 21 +61 +62-1=0 is 1) 3x + 4y + 5 =9 2) 3x+4y- 5 =90

Equation of the pane passing through the points (2,2,1) and (9,3,6), and perp to the plane 2x+6y+6z-1=0 is a.3x+4y+5z=9 b.3x+4y-5z=9 c.3x+4y-5z=9 d.none of these

Equation of the pane passing through the points (2,2,1)a n d(9,3,6),a n d_|_ to the plane 2x+6y+6z-1=0 is a. 3x+4y+5z=9 b. 3x+4y-5z=9 c. 3x+4y-5z=9 d. none of these

Equation of the pane passing through the points (2,2,1)a n d(9,3,6),a n d_|_ to the plane 2x+6y+6z-1=0 is a. 3x+4y+5z=9 b. 3x+4y-5z=-9 c. 3x+4y-5z=9 d. none of these

The equation of the plane passing through the point (-2,-1,-3) and parallel to the plane 2x+y+z-9=0 is

Equation of the plane passing through the points (2,2,1)a n d(9,3,6),a n d_|_ to the plane 2x+6y+6z=9 is a. 3x+4y+5z=9 b. 3x+4y-5z=9 c. 3x+4y-5z=9 d. none of these

Equation of the plane passing through the points (2,2,1)a n d(9,3,6),a n d_|_ to the plane 2x+6y+6z=9 is a. 3x+4y+5z=9 b. 3x+4y-5z=9 c. 3x+4y-5z=9 d. none of these

Find the equation of the plane through the points (2,2,1) and (9,3,6) and perpendicular to the plane 2x+6y+6z=1