what is f(a+2)? WHAT IS THE FUNCTION

Answer:
(5+a)/(a-1)
Step-by-step explanation:
If f(x) = (3+x)/(x-3)
f(a+2) = ?
You replace x with a + 2
So, f(x) = f(a+2)
f(a+2) = (3+a+2)/(a+2-3)
f(a+2) = (5+a)/(a-1)