Question: Suppose f : R - R is a function such that for all r,y ( R, f(x + y) = f(x) + f(y) and f(ry)

Suppose f : R - R is a function such that for all r,y ( R, f(x + y) = f(x) + f(y) and f(ry) = f(x)f(y). We proved in Tutorial 4B that then we also have f(0) = 0, f(1) = 1, f(-1) = -1, and the implication a f(a)

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