Question

Need to find f(x+1) the function f is defined by f(x)

Answer 1

The given function is

`f(x)=(x+7)/(3x+4)`

To find f(x + 1), substitute x in f by (x + 1)

`f(x+1)=((x+1)+7)/(3(x+1)+4)`

Simplify it

`\begin{gathered} f(x+1)=(x+1+7)/(3x+3+4) \\ \\ f(x+1)=(x+8)/(3x+7) \end{gathered}`

The answer is

`f(x+1)=(x+8)/(3x+7)`