2 / 4 - 100% + 12. Find Vf (2, 0), the gradient at (2, 0) a. b. c. d. e. 13. Find a normal

2 / 4 - 100% + 12. Find Vf (2, 0), the gradient at (2, 0) a. b. <.12> c. d. e. 13. Find a normal vector to the level curve f (x, y) = 8 at (2, 0) a. b. c. d. e. 14. Identify the quadric surface given by the equation. x2 + y2 - z2 = 0 a. ellipsoid b. hyperboloid of one sheet c. elliptic paraboloid d. elliptic cone e. hyperbolic paraboloid 15. Given vectors u = and v = Find u . v a. 15 b. 12 C. 8 d. 6 e. 3 16 -18. Given f(x, y) = x3 + y3, find the double integral that gives the volume under f(x, y) over the given region: 16. R: 0