SOLUTION: How to find the domain of f(x)=log(x+9)

Question 412623: How to find the domain of f(x)=log(x+9)
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
How to find the domain of f(x)=log(x+9)
.
Domain defines the valid values that x can take.
.
Since you cannot take a log of a negative number
this means
(x+9) >= 0
x >= -9
.
x has to greater than or equal to -9
sometimes written as:
[-9, oo)
where oo denotes infinity
.
Or,
{x | x >= -9}

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