Function problem

: 131.151 Calculus 1 for Engineers: Function problem
   By Anonymous on Monday, December 12, 2005 - 04:48 pm: Edit Post

Hi Dr. Sasho,

I was trying to solve this exercice in the link below but i don't know if i got it right. May you please give me the right answers or the way of doing it?
http://www.umanitoba.ca/student/exams/site/data/136151-121399-F-852928029.pdf


   By Sasho on Monday, December 12, 2005 - 04:50 pm: Edit Post

Which exercise?


   By Anonymous on Monday, December 12, 2005 - 04:53 pm: Edit Post

exercice number 4 where we have the graph of f'(x) and we are asked to find the critical points and some other points.

Thanks for the quick response,


   By Sasho on Monday, December 12, 2005 - 05:22 pm: Edit Post

Here is to start you off:

(a) Critical points is where f'(x) is 0 (i.e., where it crosses the x-axis): apparently that happens at x=2 and x=4.

(b) The function increases where f'(x)>0. Again it is visible from the graph that that is true for x between 0 and 2 and for x larger than 4.


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