What is extrapolation? Should extrapolation ever be used? O Extrapolation is using the regression line to make predictions beyond the range of x-values in the data. Extrapolation is appropriate if there are no influential points in the data. O Extrapolation is using the regression line to make predictions beyond the range of x-values in the data. Extrapolation is always appropriate to use. The coefficient of Extrapolation is using the regression line to make predictions beyond the range of x- values in the data. Extrapolation should not be used. Determination is the square of the correlation coefficient, r. The coefficient of determination measures how much of the variation in the response variable is explained by the explanatory variable. O Extrapolation is using the regression line to make predictions beyond the range of y-values in the data. Extrapolation should not be used