SOLUTION: Find the domain of the function: f(x)= (x+15)/(x^2-289)

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Question 864585: Find the domain of the function:
f(x)= (x+15)/(x^2-289)
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
Find the domain of the function:
f(x)= (x+15)/(x^2-289)
x^2-289=0
x=±√289
x=±7
domain: all real numbers except ±7 which makes the denominator=0 and the function undefined.
In interval notation: (-∞,-7) U (7, ∞)