http://webwork.mathstat.concordia.ca...3ee9b0cf31.png

I am trying to figure out how to write the domain in interval notation

i reduced the denominator to (x-4)^2 but am stuck now

any help would be great

Thanks

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- September 23rd 2012, 06:48 AMM670Domain of a function
http://webwork.mathstat.concordia.ca...3ee9b0cf31.png

I am trying to figure out how to write the domain in interval notation

i reduced the denominator to (x-4)^2 but am stuck now

any help would be great

Thanks - September 23rd 2012, 06:57 AMSironRe: Domain of a function
What you have said is not entirely correct, you can reduce the denominator to thus

For which value is the fraction not defined? i.e when is the denominator zero?

Can you make a conclusion now? - September 23rd 2012, 07:02 AMM670Re: Domain of a function
I believe the denominator is = to zero when x = to -4 or 4

so in interval notation I got (infinity,-4) U (4, inifinity) - September 23rd 2012, 07:07 AMSironRe: Domain of a function
- September 23rd 2012, 07:09 AMskeeterRe: Domain of a function
correction ...

only x = -4 is not in the domain. - September 23rd 2012, 07:09 AMM670Re: Domain of a function
The domain is all real number excluding -4

- September 23rd 2012, 07:13 AMSironRe: Domain of a function
- September 23rd 2012, 07:16 AMM670Re: Domain of a function
Thank You to both of you

I have been stuck on this for over a day now