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Graphing exponential growth & decay

Graph the function.
g(x)=122xg(x)=\dfrac12\cdot2^x
Created with RaphaëlCreated with Raphaël
Created with Raphaël
Created with Raphaël
Created with Raphaël
Created with Raphaël
Created with Raphaël
Created with Raphaël
1\small{1}2\small{2}3\small{3}4\small{4}5\small{5}-1\small{\llap{-}1}-2\small{\llap{-}2}-3\small{\llap{-}3}-4\small{\llap{-}4}-5\small{\llap{-}5}1\small{1}2\small{2}3\small{3}4\small{4}5\small{5}-1\small{\llap{-}1}-2\small{\llap{-}2}-3\small{\llap{-}3}-4\small{\llap{-}4}-5\small{\llap{-}5}yyxx