What are the slopes of line a and line b? look at the picture

we can mark points on the graph shown , check the image I have shared with this for the points .

Formula for slope =

So for Line A points are (1,3) and (0,-1)

So using t he formula slope is =

                  slope of line A =4

For Line B the points are  (0,4) and (3,-5)

So using t he formula slope is =

                  slope of line B = -3

it should be a.

hope it