FORECAST.LINEAR

FORECAST.LINEAR(x, known_y's, known_x's)

Returns the future y-value along a linear trend using existing values.

x	The x-value you want the prediction for.
known_y's	The set of y-values for the equation (y = mx + c).
known_x's	The set of x-values for the equation (y = mx + c).

REMARKS

* This function was added in Excel 2016.
* This function can return multiple values.
* This function replaces the FORECAST function.
* You can use the FORECAST.ETS function to return the future value based on historical values.
* You can use the FORECAST.ETS.CONFINT function to return the confidence interval for a future value.
* You can use the FORECAST.ETS.SEASONALITY function to return the length of the repetitive seasonality pattern.
* You can use the FORECAST.ETS.STAT function to return the statistical value for a future value.
* For the Microsoft documentation refer to support.microsoft.com

	A
1	=FORECAST.LINEAR(30,{6,7,9,15,21},{20,28,31,38,40}) = 10.607
2	=FORECAST.LINEAR(3.2,2,3) = #DIV/0!