Linear Regression Formula Desmos. Desmos will even plot the residuals and serve up the correlation coefficient so you can explore the goodness of the fit. This simple linear regression calculator uses the least squares method to find the line of best fit for a set of paired data allowing you to estimate the value of a dependent variable y from a given independent variable x.
To get started with regressions you ll need some data. The red graph represents the exponential regression model for the first set of data y1. You can also long hold the colored icon and make the points draggable to see how their values change the equation.
We are going to ask desmos to show us the best possible linear function to model the data in our table.
The line of best fit is described by the equation ลท bx a where b is the slope of the line and a is the intercept i e the value of y when x 0. Linear functions desmos classroom activities. Click to add an expression and type in y1 mx1 b you should see a line appear on the graph and some values appear under the expression. This simple linear regression calculator uses the least squares method to find the line of best fit for a set of paired data allowing you to estimate the value of a dependent variable y from a given independent variable x.
