which of the following exponential functions represents the graph below?
[tex] a.\: \: \: \: \: \: f(x) = 5 • ( \frac{1}{4}) {}^{x} [/tex]
[tex] b. \: \: \: \: \: \: \: \: \: \: \ f(x)5•4 {}^{x} [/tex]
[tex]c .\: \: \: \: \: \: f(x) = 4• ( \frac{1}{5}) {}^{x} [/tex]
[tex]d. \: \: \: \: f(x)=4•5 {}^{x} [/tex]
