Question

What is the domain and range for the function below?

1/square root x+4

Answer 1

`f(x)= (1)/( √(x+4) )`

Domain:

`√(x+4) \\e 0 \\ x+4 \\e 0 \\x \\e -4`

Range:
`√(x+4)\ \textgreater \ 0 \Rightarrow (1)/(√(x+4)) \ \textgreater \ 0 \Rightarrow y\ \textgreater \ 0`