For which of the following functions is f(a+b)=f(a)+f(b) for : Quant Question Archive [LOCKED]
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# For which of the following functions is f(a+b)=f(a)+f(b) for

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For which of the following functions is f(a+b)=f(a)+f(b) for [#permalink]

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03 Apr 2006, 03:07
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

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

f(x)=x^2
f(x)=x+1
f(x)=sqrt x
f(x)=2/x
f(x)=-3x
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03 Apr 2006, 05:23
f(a+b)=-3(a+b)=f(a) + f(b)
03 Apr 2006, 05:23
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