Excel INTERCEPT Function
The INTERCEPT function calculates the point at which a linear regression line will intersect the y-axis by using the given x-values and y-values.
Syntax
=INTERCEPT(known_ys, known_xs)
Arguments
- known_ys (required): An array or cell reference to dependent variables (y-values).
- known_xs (required): An array or cell reference to independent variables (x-values).
Return Value
The INTERCEPT function returns a numeric value.
Function Notes
- Arguments can be numbers, arrays, or references that contain numbers.
- INTERCEPT ignores blank cells, text and logical values in a reference argument.
- INTERCEPT ignores text and logical values in an array argument. However, if the two array arguments have different numbers of data points, the #N/A error value will be returned.
- If there are any error values in any of the arguments, INTERCEPT will return the first error value.
- The #DIV/0! error occurs if:
- The variance of the supplied known_xs equals to zero;
- Either of the supplied known_xs or known_ys arguments is empty.
Example
Supposing you have a table with x- and y-values as shown below, to get the y-axis intercept value, please copy or enter the formula below in a blank cell, and press Enter to get the result:
=INTERCEPT({2;-7;3;6;9},{-10;-7;0;3;8})
Or, use cell references to make the formula dynamic:
=INTERCEPT(C4:C8,B4:B8)
Related functions
The Excel LINEST function returns the statistic for a best fit straight line based on the supplied set of x value and y value by using the “least squares” method. The function returns an array of constant values.
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