Question

If f(x)= (3+x)
——- , what is f(a+2)?
(x-3)

Answer 1

Explanation:

If f(x)= (3+x)

--——- , what is f(a+2)?

(x-3)

To answer this, replace each instance of x with a + 2:

3 + a + 2 5 + a

f(a + 2) = ----------------- = --------------

a + 2 - 3 a - 1