For this case we have the following function: f (x) = 5 * (1/3) ^ x We must evaluate the function for x = 4 We have then: f (4) = 5 * (1/3) ^ 4 Rewriting: f (4) = 5 * (1/81) f (4) = 5/81 Answer: The function evaluated at x = 4 is: f (4) = 5/81 option C
