These are multiple choice!

9. Which of the following is a unit normal vector to the plane with Cartesian equation 2x - y + 2z - 5 = 0? a. 1 2 C. n = (-2, 1,-2) b. d. n = (2,-1,2) WIN WIN 3 ' 10. Determine the parametric equation of the plane that contains the line x+2 y-3 z-2 5 3 2 and the point P( 2, 5, 3 ) . a. x = 2+ 5s + 3t, y = 5+ 35 + 2t, z = 4+ 2s +t, s,t ER b. x = 5+ 2s + 2t, y = 3- 3s+ 5t, z = 2 - 2s + 3t, s,te R c. x= -2+ 5s + 2t, y = 3+ 3s + 5t, z = 2+ 2s+ 3t, s,te R A d. x = 2+ 5s + 4t, y = 5+ 35+ 2t, z = 3+2s+t, s,te R E 1 1. The prism on the right is bisected by the xy-plane. The point P = (3, 7, 3). V Determine C. a. (0, 7, -3) C. (0, -7, -3) b. (0, 7, 3) d. (0, -7, 3) G