Question: The exponential function f(x) = 2500(0.4) models the amount of money in Zachary's savings account over the last 10 years. Is Zachary's account balance increasing

The exponential function f(x) = 2500(0.4) models the amount of money

The exponential function f(x) = 2500(0.4) models the amount of money in Zachary's savings account over the last 10 years. Is Zachary's account balance increasing or decreasing? Write the base in terms of the rate of growth or decay.

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