Is the discrete random variable X has p.g.f Gx(s) what is the p.g.f of mX + n?

I know the p.g.f is given by sum over k (p(k)*s^k) but I'm not sure where to go from here

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- Jan 2nd 2009, 06:39 AMJames0502probability generating function
Is the discrete random variable X has p.g.f Gx(s) what is the p.g.f of mX + n?

I know the p.g.f is given by sum over k (p(k)*s^k) but I'm not sure where to go from here - Jan 2nd 2009, 07:18 AMIsomorphism