Is question 16 right or if not why?

The domain is all real numbers except the value of x=-6

Step-by-step explanation:

we have

we know that

Remember that the denominator cannot be equal to zero

so

The value of x cannot be equal to -6

therefore

The domain is all real numbers except the value of x=-6

In interval notation the domain is

(-∞,-6) ∪ (-6,∞)