What is the domain of the function shown below? f(x)=-24/(x^2+8) help please

Question

anonymous · Answer

@Mertsj  or @phi  can you guys help?

anonymous · Answer

well the domain are the x values for which the function is defined.
for a fraction such as yours to be undefined the divisor must be 0
but x^2+8 > 0 for every x
so the domain is R, every real number

mertsj · Answer

Remember, the denominator cannot be 0.  Since the denominator is x^2+8,  and x^2 has a smallest value of 0, and 0+8 will always be positive, there are no restrictions on x and the domain is all real numbers.

anonymous · Answer

hey Mertsj, can you help me with some advanced number theory? i am trying to do something with the sigma function(sum of divisors of number)

anonymous · Answer

so then the domain would be all real numbers greater than 0?

anonymous · Answer

yes

anonymous · Answer

dag nabit it was just all real numbers 
:/ thanks anyways

mertsj · Answer

Didn't I post that the domain is all real numbers?