Use a graphing utility to find the equation of the line of best fit. Round to two decimal places, if necessary.
-$\begin{array}{l|ccccc}
x & 3 & 5 & 7 & 15 & 16 \
\hline y & 8 & 11 & 7 & 14 & 20
\end{array}$
A) $y = 0.95 x + 3.07$
B) $y = 0.75 x + 5.07$
C) $y = 0.85 x + 3.07$
D) $y = 0.75 x + 4.07$

Question

Quizplus · Accepted Answer

The line of best fit is calculated using the least squares method, which minimizes the sum of the squares of the vertical distances of the points from the line. Using a graphing utility, the equation $y = 0.75x + 5.07$ is found to best fit the given data points.

Use a Graphing Utility to Find the Equation of the Line