Answer:
y=3x-1
Step-by-step explanation:
y=mx+b
m=3/1 --> 3(rise over run)
b=-1
Rise over run. Or I believe. Like If I chose (-1,2) and (0,-1) the rise or in this case since the line is going down, if I move down 4 units. I am one unit to the left of (0,-1) so 4/1 so rise/run
