How do I write -3*4^(2-x) in f(x)=ab^x form?
\(f(x)=-3*4^{2-x}\)⇒\(f(x)=-3*4^{2}*4^{-x}\)⇒\(f(x)=-3*16*(\frac{1}{4})^{x}\)⇒\(f(x)=-48(\frac{1}{4})^{x}\)