Question

Find the domain of the rational function.f(x)=x−1/x+4

Answer 1

Given:

`f(x)=(x-1)/(x+4)`
`\begin{gathered} \text{Let, x+4=0} \\ x=-4 \end{gathered}`

Domain:

`-\infty<-4<\infty`
`(-\infty,-4)\cup(-4,\infty)`