Find the interval on which f(x)= 1+x^(3/2)-(3/2)x - 1 is increasing

Question

Find the interval on which f(x)= 1+x^(3/2)-(3/2)x - 1  is increasing

hero · Answer

You're going to need f'(x) and f''(x) for this one

anonymous · Answer

how?:/

hero · Answer

$$f(x) = 1 + x^{3/2} - \frac {3} {2} x -1$$

is that the function?

anonymous · Answer

hey hero u used to be heromilies ????

hero · Answer

If it is, then: 
$$f'(x) = \frac {3} {2}x^{1/2} - \frac {3} {2}$$
$$f''(x) = \frac {3} {4x^{1/2}}$$

hero · Answer

Yes, I used to be heromiles

anonymous · Answer

oh i was wondering who u wer wen everybody was talkin bout u

anonymous · Answer

I think this is correct but everybody take a look and let me know. Go to this link at scribblar.com http://www.scribblar.com/kuub1xb

anonymous · Answer

it wont load on my computer

anonymous · Answer

mmm...oh well it would take me forever to type all that. and to show the graph...I got wher -1<x<1....is that correct?

anonymous · Answer

yeah i think so it looks right to me (:(:

hero · Answer

Rhino, your post takes me to a sign-in page

anonymous · Answer

just make up a name and sign in...no password needed

anonymous · Answer

sorry i couldnt help u more /:

anonymous · Answer

bye guys(:(:(:(:

hero · Answer

Wow, we medaled each other simultaneously