Answer:
4
Step-by-step explanation:
y=mx+b m= slope b= y-intercept
substitute the known values and a coordinate
(x,y) so you can use (2,2) or (4,0) to solve for b
(2,2)
2= (-1) (2) +b
2= -2 +b
4=b
or
(4,0)
0=(-1) (4) +b
0= -4 +b
4=b
either way, the y-intercept should be 4
