edward9michael edward9michael 09-12-2017 Mathematics contestada Let f(x)=8^x . Which function represents a transformation of f(x) by a vertical stretch with factor 2? A. g(x)=8^2x B. g(x)=8 1/2^x C. g(x)=2⋅8^x D. g(x)=1/2⋅8^x