For this case we have that by definition, the slope of a line is given by:

Two points are needed through which the line passes:

Substituting:
Rounding:

Answer:

I can help but the picture does not load, for some reason it takes me to a page that says enter code. I have no idea what it is but i did not mess with it...
you might want to re-post a new picture just to be safe because that code thing might be something of yours thats personal
Id say B, y=-2/3+3
Hope this helps