Question

If f(x)=3x+5/x, what is f(a + 2)?

a. 3a + 5/a + 2

b. 3(f(a)) + 5/f(a)+2

c. 3(a+2) + 5/a+2

Answer 1

Answer C is correct

Explanation:

1. We replace x as (a + 2)

2. Then we just rewrite this function with the new value

3. Result: 3(a+2) + 5/(a+2)