9. 10. 11. The level curves of the function f(m,y) = 1/1 3:2 2312 are A. circles B. lines C. parabolas D. hyperbolas E. ellipses The level surface of the function f (:13, y, z) = 2552 y2 that passes through the point (1, 2, 3) intersects the (as, z)-plane (y = 0) along the curve A.z=m2+8 B.z=:c28 C.z=:1:2+5 D.z=1:28 E. does not intersect the (as, z)-plane Match the graphs of the equations with their names: (1) m2 + 3,12 + 2:2 = 4 (a) paraboloid (2) 1'2 + Z2 = 4 (b) sphere (3) x2 + 3,12 = 22 (0) cylinder (4) m2 + 312 = 2 ((1) double cone (5) 332 + 2y2 + 322 = 1 (e) ellipsoid A. 1b, 2c, 3d, 4a, 5e B. 1b, 20, 3a, 4d, 5e C. 1e, 2c, 3d, 4a, 5b D. 113, 2d, 3a, 4c, 5e E. 1d, 2a, 3b, 4e, 5c