Number 12

10. (15 points)Use the first and the second derivative to graph f(x)- 11. (15 points)Find the derivative y = In ( X- I x+1 12. For a particular commodity the demand function q - A(p) - -(400-p2) a. (8 points)Find the elasticity of demand when p = 10 b. (8 points)Is demand elastic, inelastic or unit elastic?( Explain). 13. The quantity demanded per week x (in units of a hundred) of the Mikado m price p (in dollars) by the demand equation x = 400 - 5p (0 S p s 80) a. (4 points)Is the demand elastic or inelastic when p = 40? When p - 60 b. (4 points) When is the demand unitary