Answer:
Slope of the line is -1.2
Option B is correct option.
Step-by-step explanation:
We need to find slope of the line with given points (4, 10.5) and (8,5.7)
The formula used to calculate slope is: [tex]Slope=\frac{y_2-y_1}{x_2-x_1}[/tex]
The points given are: (4, 10.5) and (8,5.7)
We have [tex]x_1=4,y_1= 10.5x_2=8,y_2=5.7[/tex]
Putting values and finding slope
[tex]Slope=\frac{y_2-y_1}{x_2-x_1}\\Slope=\frac{5.7-10.5}{8-4}\\Slope=\frac{-4.8}{4}\\Slope=-1.2[/tex]
So, Slope of the line is -1.2
Option B is correct option.