1. Find a normal vector for the tangent plane to = = 2y'-7x at the point (-1, -1, -2). A. (4, -14, 1) B. (-14, 4, -2) C. (-4, 14, 1) D. (-14, 4, 1) E. None of above 2. Which of the following is the polar coordinate of (-v2, v2)? A. (2, 51/4) B. (2V/2, 5#/4) C. (2, 71/4) D. (2V/2, 71/4) E. None of above 3. Which of the following vector is parallel to the line of intersection between the planes I + 2y -2=0 and