Find the domain of the function. (Enter your answer using interval notation.)

Step-by-step explanation:

The domain of a rational function is all real numbers except for when the denominator equals 0.

So, to find the domain restrictions, set the denominator to 0 and solve for x.

We have the rational function:

Set the denominator to 0:

Subtract 9:

So, the domain is all real numbers except for -9.

In other words, our domain is all values to the left of negative 9 and to the right of negative 9.

In interval notation, this is:

And we're done :)

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i think is g(1)=-1.

hope that i can