Question

If f (x) = (3+x)/(x-3)
what is fa+2)?

Answer 1

`(a+5)/(a-1)`

Explanation:

Given

f(x) =
`(3+x)/(x-3)`

To evaluate f(a + 2) substitute x = a + 2 into f(x), that is

f(a + 2) =
`(3+a+2)/(a+2-3)` =
`(a+5)/(a-1)`