Pls help i dont understand :( will give Brainliest + 25 Points

well,
2/3x is the slope, and b is the y-intercept, y is the y coordinate
it can only be one of the last 2
It is the LAST one
x=6
y=-5
-5 = 2/3(6)-9
-5 = 4-9
-5 = -5
the answer is the last one