If an array or reference argument contains text, logical values, or empty cells, those values are ignored however, cells with the value zero are included. The arguments must be either numbers or names, arrays, or references that contain numbers. An array or cell range of numeric dependent data points.
The SLOPE function syntax has the following arguments: The slope is the vertical distance divided by the horizontal distance between any two points on the line, which is the rate of change along the regression line. Returns the slope of the linear regression line through data points in known_y's and known_x's. This article describes the formula syntax and usage of the SLOPE function in Microsoft Excel.