Question

Which expression is equivalent to (f + g)(4)?

Answer 1

Answer:

(f+g)(x) =f(x)+g(x)  

Step-by-step explanation:

(f+g)(x ) is f(x)  +g(x)

that is in order to find f+g value at x ,we have two ways

(i) first we add simplify  f and g by adding and then plug the value at which we need the value

(ii) we find the value of f(x) and g(x) individually   and then we add the obtained  values.

so here in order to find (f+g)(4)

Either we add f and g first.and then find value at x =4

or

find f(x) at x =4 and g(x) at x=4 and then we add the obtained value

Answer 2

This is a composite function, which is equivalent to f(g(4)).