SOLUTION: help me find the domain of {{{7x/(x+4) }}} how and why?

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Question 6758: help me find the domain of 7x%2F%28x%2B4%29+ how and why?

Answer by ichudov(507) About Me  (Show Source):
You can put this solution on YOUR website!
The domain is simply all points where the function is defined. The only way this one can be UNdefined is when the denominator is 0.
x+4 = 0 x=-4.
So, the domain is all values of x EXCEPT -4.