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<u>Given</u>:
The given graph shows the scatter points.
We need to determine the equation for the line of best fit.
<u>Slope of the equation:</u>
From the figure, it is obvious that the slope of the line is
Rounding off to the nearest tenth, we get;
Thus, the slope of the equation is
<u>Value of y - intercept:</u>
From the figure, it is obvious that the y - intercept is
Rounding off to the nearest tenth, we get;
Thus, the y - intercept of the equation is
<u>Equation of the line:</u>
The equation of the line can be determined using the formula,
Substituting and
, we get;
Thus, the equation for the line of best fit is