6. A function g is defined by g(x) = 3e3x. What is g"(2)? D 27e6 B 27e 3 C ge3 7. On what interval is the graph of f(x) = In(x2 + 1) concave up? A (0, 1) B (- 1, 1) C (-0.5, 0.5) D (- V3 V3 3'3 8. The function y = ex-2 - 2 has which of the following as an asymptote? Ay =-2 BX =-2 C x =0 D X =2 9. A piece of ice cut in the shape of a cube melts uniformly so that its volume decreases at 3 cm3/sec. How fast is its surface area decreasing when the edge of the cube is 5 cm? 12 cm2/sec B 2 cm2/sec C 2.4 cm2/sec D 6 cm2/sec 10. A spherical balloon is filled with air at 8 in'/sec. How fast is the diameter of the Balloon increasing when the volume of the balloon is 367t in3? A - in/sec B - in/sec C - in/sec - in/sec 27 1