Question

Which expression is equivalent to (f + 9)(4)?
f(4) + g(4)
f(x) + g(4)
f(4 + g(4))
4(f(x) + g(x))

Answer 1

Answer: f(4)+g(4)

Step-by-step explanation: A rule of the operations on functions is that,

(f+g)(x)=f(x)+g(x) so just replace the x with a 4