11. The tangent line of the function f(x) = 2 pa_gat x = 2 is given by: a. y = -4x b. y = 4x C. y= -4x + 1 d. y = 4x - 1 12. The tangent line of the function f(x) = 11 + + x - 2x* is not horizonal for: a. x = 1 b. G. x=-2 d. * = 13. Which of the following about a function is impossible? a. That the function is continuous and differentiable. b. That the function is continuous and not differentiable. c. That the function is discontinuous and differentiable. d. That the function is neither continuous nor differentiable. 14. The capacity of a cylindrical watermain, as measured by the watermain's interior volume, is given by V = lar? where I and r are the length and radius, respectively, of the interior of the watermain. The relative rate of change of capacity with respect to the radius is: a. 2/r b. 1/Zar c. 1/12 d. V /mr2 15. If h(x) = f(g(x)) such that f'(z)g'(x)/f (z) = c for some constant c # 0 when z = g(x), then: a. h(x) = ex/c b. h(x) = ec c. h(x) = ex-c d. h(x) = exte 16. If h(x) = f(g(x)) such that f'(z)g'(x)x = c for some constant c # 0 when x # 0 and z = g(x), then: a. h(x) = Inlx + cl b. h(x) = In|x/c| c. h(x) = In|cx| d. h(x) = In|x"| 17. Which of the following is not the elasticity of y = f(x) with respect to x? Inx a. d In y b. d Inx C. d