TREND function - support.microsoft.com
support.microsoft.com › en-us › officeTREND function Excel for Microsoft 365 Excel for Microsoft 365 for Mac Excel for the web More... The TREND function returns values along a linear trend. It fits a straight line (using the method of least squares) to the array's known_y's and known_x's. TREND returns the y-values along that line for the array of new_x's that you specify.
Excel TREND Function
www.excelfunctions.net › excel-trend-functionThe Excel TREND function calculates the linear trend line through a given set of y-values and (optionally), a given set of x-values. The function then extends the linear trendline to calculate additional y-values for a further supplied set of new x-values. The syntax of the function is: TREND( known_y's, [known_x's], [new_x's], [const])