I believe it’s D not sure though I’m sorry
The origin is just (0,0) and we can multiply that slope, -4/3 by any number to get the second point. let's use x=3 to make is simple as possible, the second point is then just (3,-4)
Connect (0,0) to (3,-4) and you have your line :)
The sale was 55$ because if you subtract those you get 55 which is the difference between the two
Hope this helps
3,-13
-1,3
0,-1
3,-13
