Answer:
D. y= - 1/2x +9
Explanation:
In the graph, a line of best fit is drawn as shown below:
Using the points (8,5) and (6,6)
[tex]\begin{gathered} \text{Slope}=\frac{Change\text{ in y-axis}}{Change\text{ in x-axis}} \\ =\frac{5-6}{8-6} \\ =-\frac{1}{2} \end{gathered}[/tex]The y-intercept of the line = 9.
Therefore, the equation of the line of best fit for the set of data points is:
[tex]y=-\frac{1}{2}x+9[/tex]
