Find a function of the form f(x) = C ? bx, where b > 0, that is represented by the graph. 

A. f(x) = 5 ? 0.9x
B. f(x) = 5 ? 1.1x
C. f(x) = 5 ? 0.7x
D. f(x) = 4.5 ? 0.9x


Answer: A

Mathematics

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