Thursday

March 5, 2015

March 5, 2015

Posted by **Ifi** on Sunday, October 28, 2012 at 3:43am.

My f'(x) is-6x/(x^2+1)^2, after that i didnt know how to proceed next bcus i didnt know how to find x to substitute in the f'(x).

- Math -
**Steve**, Sunday, October 28, 2012 at 5:52amAssuming your f' is correct, f is increasing where f'>0.

Since the denominator is always positive, f is increasing where the numerator is positive: x<0

Similarly for decreasing.

**Answer this Question**

**Related Questions**

I think you didnt see my question ^^ help please! - Hi!!! I didnt understand ...

math - how to find the slope of the curve 17x^2+12xy=100-8y^2 at the point where...

math - how to find the slope of the curve 17x^2+12xy=100-8y^2 at the point where...

Calculus - I need help determining the intervals of increase, decrease and the ...

math - Triangle XYZ has vertices X(-5,3), and Z(7,-6). Find the coordinates of ...

calculus help - Produce graphs of f that reveal all the important aspects of the...

People - who is a famous person who didnt go to college or didnt graduate high ...

Math - How to d/dx y= (9+((x-9)/6)^1/5)^1/2 ? Hope u can give me the way how to ...

Calculus - Consider the function f (x) = 2x^3 - 3x^2 - 72x + 7 Find and classify...

Algebra - Hi!!! I didnt understand these problem, so I was wondering if you ...