Question

If f (x) equals 3 + x / x - 3 what is f (a + 2)?​

Answer 1

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

Step-by-step explanation

The given function is

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

To find f(a+2) we substitute x=a+2.

That is wherever we see 'x' we replace it with 'a+2'

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

We simplify further to obtain:

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

This is defined for

`a \\e1`