APFIVE Exponential Function From a Constant Ratio
Suppose the functions f and g are related by the equation g(x) = f(x) - 5, and that g(x+2)/g(x) = 4 for all x. Which of the following could define f(x)?
A
f(x) = 7·e^x + 5
B
f(x) = 7·x^2 + 5
C
f(x) = 7·4^x - 5
D
f(x) = 7·2^x + 5
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