y=x√x+9

I am supposed to have the answer as an ordered pair, give an "exact" answer using radicals as needed... Any thoughts? I got (0,0), but I am wrong...

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- Oct 8th 2012, 11:45 AMalane1994Finding x intercepts of a function.
y=x√x+9

I am supposed to have the answer as an ordered pair, give an "exact" answer using radicals as needed... Any thoughts? I got (0,0), but I am wrong... - Oct 8th 2012, 11:51 AMTheEmptySetRe: Finding x intercepts of a function.
- Oct 8th 2012, 11:58 AMalane1994Re: Finding x intercepts of a function.
I should have been more specific... it is $\displaystyle x\sqrt{x+9}$I am doing this on an online program for my calculus course... I just ran out of attempts on this problem and it changed the problem...

$\displaystyle x\sqrt{x+6}$ - Oct 8th 2012, 04:56 PMhollywoodRe: Finding x intercepts of a function.
For $\displaystyle x\sqrt{x+6}$ to be zero, you can have either $\displaystyle x=0$ or $\displaystyle \sqrt{x+6}=0$. So there are two x intercepts.

Online homework systems can be picky about the format of the answer. Some systems let you do a practice problem where you can view the answer - then you will know the format of the answer.

- Hollywood