_______________________________________________________________________
Calculus I                                                          Quiz #5                            October 15, 2004

Name____________________                   R.  Hammack                              Score ______
_______________________________________________________________________

(1) Use the limit definition of the derivative to find the derivative of the function  f(x) = 1/x^(1/2).
  
  
  






(2)  Use your answer from Question 1 to find the slope of the tangent line to the graph of the function f(x) = 1/x^(1/2)
at the point where x = 4. (You do not need to use a limit to answer this question.)



 


(3)   Use your answer from Question 2 to find the equation of the tangent line to the graph of the function f(x) = 1/x^(1/2)
at the point where x = 4. Please put your final answer in slope-intercept form.