SOLUTION: A certain function f has the property that f(x + y) = f(x) + f(y) for all values of x and y . which of the following statements must be true when a = b ? I f(a + b) = 2

SOLUTION: A certain function f has the property that f(x + y) = f(x) + f(y) for all values of x and y . which of the following statements must be true when a = b ? I f(a + b) = 2

Algebra.Com

Question 394207: A certain function f has the property that f(x + y) = f(x) + f(y) for all values of x and y . which of the following statements must be true when a = b ?
I f(a + b) = 2 f(a)
II f(a + b) = [f(a)]^2
III f(b)+ f(b) = f(2a)
(A) none
(B) I only
(C) I and III only
(D) II and III only
(E) I II, and III

Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
(C) I and III only
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