Use a graphing utility to find the equation of the line of best fit. Round to two decimal places, if necessary.
-$\begin{array}{c|ccccc}
\mathrm{x} & 1 & 3 & 5 & 7 & 9 \
\hline \mathrm{y} & 143 & 116 & 100 & 98 & 90
\end{array}$

A) $y = 6.2 x - 140.4$
B) $y = - 6.8 x + 150.7$
C) $y = - 6.2 x + 140.4$
D) $y = 6.8 x - 150.7$

Question

Use a graphing utility to find the equation of the line of best fit. Round to two decimal places, if necessary.
-$\begin{array}{c|ccccc}
\mathrm{x} & 1 & 3 & 5 & 7 & 9 \
\hline \mathrm{y} & 143 & 116 & 100 & 98 & 90
\end{array}$

A) $y = 6.2 x - 140.4$
B) $y = - 6.8 x + 150.7$
C) $y = - 6.2 x + 140.4$
D) $y = 6.8 x - 150.7$

Quizplus · Accepted Answer

The equation of the line of best fit is y = - 6.2 x + 140.4. This can be found using a graphing utility, such as a calculator or online graphing tool. The equation is rounded to two decimal places.

Use a Graphing Utility to Find the Equation of the Line