Which of the following is true regarding the two smoothing, Ask an Expert

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Which of the following is true regarding the two smoothing constants of the Forecast Including Trend (FIT) model (which is also called exponential smoothing with trend adjustment)?
One constant is positive, while the other is negative.
They are called MAD and RSFE.
Alpha is always smaller than beta.
One constant smoothes the regression intercept, whereas the other smooths the regression slope.
Their values are determined independently.

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