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#1 2008-03-18 07:05:43
- magic
- Guest
function and domain
Please help
F(x)= (x^2 - 4)
________
x^2-7x- 12 , What number can not be the domain?
Thanks
#2 2008-03-18 07:11:09
- luca-deltodesco
- Member
- Registered: 2006-05-05
- Posts: 1,470
Re: function and domain
F is undefined when x^2 - 7x - 12 is eqal to 0, as the denominator in the fraction is then 0, and thus F is undefined.
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