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A variable from a graphing calculator which tells you how closely the equation models the data
Line of Best Fit
The trend line that shows the relationship between two sets of data most accurately
ex. y-y1 = m(x-x1), where m is the slope and (x1,y1) is the point the line is passing through
Standard Form of a Linear Equation
ex. Ax + By = C, where A, B, and C are real numbers, and A and B are not both zero
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