Use scatter plots to represent two quantitative variables and fit functions to model relationships.
Estimate a linear model from fit-line points
Problem
A line of fit passes through \((0,~2)\), \((4,~10)\). Estimate a linear model for the line.
Big Picture
What this problem is really about
Two well-separated points on a fit line determine its linear model even if they are not original data points. Compute rise over run with a consistent point order, find the intercept from an axis crossing or substitution, and verify the finished equation against both line points.
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