Question 364436
Expression is:

{{{(x+7) / (x^2 - 9)}}}


The denominator will be 0 when x = 3 or x = -3.


The domain should be all real numbers except x = 3 and x = -3.


A graph of your equation looks like this:


{{{graph(600,600,-10,10,-5,5,(x+7)/(x^2-9))}}}


The numerator in the rational expression can be 0, but the denominator can't.


Your selection would be A.