Question

Which of the following is a true statement about functions?

A. If f is a function, then . f(3h)=3f(h)
B. If f and g are functions, then . (f+g)(1)=(g+f)(1)
C. If A and B are matrices, then AB = A+B.
D. If f and g are functions, then . (f o g)(3)=(gof)(3)

Answer 1

B.

Answer 2

B)

Answer 3

B is correct because in adding two things it doesnt matter while u add 2 by 3 or 3 by 2 so here also f+g=g+f