TestMagic Forums - View Single Post

Atonio79 · 07-24-2008, 02:23 AM

For which of the following functions is f(a+b)= f(a)+f(b) for all positive numbers a and b?

a. f(x)=x^2
b. f(x)= x+1
c. f(x)= x^(1/2)
d. f(x)= 2/x
e. f(x)= -3x

07-24-2008, 02:23 AM	#1 (permalink)
Atonio79 Eager! Join Date: Nov 2004 Location: Philadelphia Posts: 50	Function Question For which of the following functions is f(a+b)= f(a)+f(b) for all positive numbers a and b? a. f(x)=x^2 b. f(x)= x+1 c. f(x)= x^(1/2) d. f(x)= 2/x e. f(x)= -3x