What of the following is equivalent to: f(ab)=f(a)f(b)?
A. f(x)=x+1
B.f(x)=1/x
C. f(x)=sqrtx
D. f(x)=3x
E…….
OA B
A. f(x)=x+1
B.f(x)=1/x
C. f(x)=sqrtx
D. f(x)=3x
E…….
OA B
I would eliminate A from the start because you have an addition in there, but you're looking for a multiplication.
Now I would just try with B: f(ab) = 1/ab = 1/a *1/b = f(a)*f(b). Since we have a match, I would stop here and make a safe guess...
