Number 10

9. (16 points)Evaluate 10. (15 points) Use the first and the second derivative to graph f(x )= x2 - 9 x 2 + 4 11. (15 points)Find the derivative y = In( x - 1) 2 x+1 12. For a particular commodity the demand function g = f(p) = (400 -p2)