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GeoGebraGeoGebra Classroom

Residual Plot

Use the mouse to rearrange the blue data points. Move the 2 red dots to create your line of best fit. The residuals checkbox shows the corresponding residuals relative to the red line. The Linear Regression checkbox shows the "best fit" line to the data. If you move the red line to coincide with the Linear Regression you will see the "Best Fit" residuals.