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 = [tex]\frac{Y2-Y1}{X2-X1}[/tex]
So for Line A points are (1,3) and (0,-1)
So using t he formula slope is = [tex]\frac{-1-3}{0-1}[/tex]
slope of line A =4
For Line B the points are (0,4) and (3,-5)
So using t he formula slope is = [tex]\frac{-5-4}{3-0}[/tex]
slope of line B = -3