Consider this option:
Common equation for the line is 'y=kx+b', where k&b - numbers, x&y - coordinates.
1) using the points it's possible to make up the system of equations:
[tex] \left \{ {{-6=3k+b} \atop {0=-3k+b}} \right. \ =\ \textgreater \ \ \left \{ {{3k+b=-6} \atop {-3k+b=0}} \right. [/tex]
b=-3 and k=-1
2) y=-x-3
Answer: B.
