For this case we have that by definition, the equation of a line in the point-slope form is given by:
[tex]y-y_ {0} = m (x-x_ {0})[/tex]
Where:
m: It is the slope of the line
[tex](x_ {0}, y_ {0})[/tex]: It is a point that belongs to the line
According to the statement we have the following point:
[tex](x_ {0}, y_ {0}): (- 10,8)[/tex]
Substituting we have:
[tex]y-8 = m (x - (- 10))\\y-8 = m (x + 10)[/tex]
Thus, the most appropriate option is option C. Where the slope is[tex]m = -0.2[/tex]
Answer:
Option C