Use a graphing utility to find the equation of the line of best fit. Round to two decimal places, if necessary.
-$\begin{array}{c|ccccc}
\mathrm{x} & 2 & 4 & 6 & 8 & 10 \
\hline \mathrm{y} & 15 & 37 & 60 & 75 & 94
\end{array}$

A) $y = 9 x - 3$
B) $y = 9.8 x - 2.6$
C) $\mathrm { y } = 9.2 \mathrm { x } - 2.1$
D) $y = 10 x - 3$

Question

Use a graphing utility to find the equation of the line of best fit. Round to two decimal places, if necessary.
-$\begin{array}{c|ccccc}
\mathrm{x} & 2 & 4 & 6 & 8 & 10 \
\hline \mathrm{y} & 15 & 37 & 60 & 75 & 94
\end{array}$

A) $y = 9 x - 3$
B) $y = 9.8 x - 2.6$
C) $\mathrm { y } = 9.2 \mathrm { x } - 2.1$
D) $y = 10 x - 3$

Quizplus · Accepted Answer

Using a graphing utility to perform a linear regression on the given data points, the line of best fit is calculated to be $y = 9.8x - 2.6$, which matches choice B when rounded to two decimal places.

Use a Graphing Utility to Find the Equation of the Line