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Calculus Homework Please Help!!? - Yahoo! Answers
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Here is a link to the question:Calculus Homework Please Help!!?
Let f(x)= 1/(7x^2+8). Find the open intervals on which f is concave up. Then determine the x-coordinates of all inflection points of f.
1. F is concave up on the intervals ______________
2. F is concave down on the intervals ________________
3. The inflection points occur at x= ____________
Notes: In the first two, your answer should either be a single interval, such as (0,1), a comma separated list of intervals, such as (-inf, 2), (3,4), or the word "none".
In the last one, your answer should be a comma separated list of x values or the word "none".
Calculus Homework Please Help!!? - Yahoo! Answers
I have posted a link there to this topic so the OP can find my response.