Answer: 4/3
Step-by-step explanation:
The two points marked on the green line are (1,-1) and (4,3)
Let's use the slope formula.

The slope is 4/3
slope = rise/run = 4/3
rise = 4
run = 3
It means "go up 4 and to the right 3" so we can move from (1,-1) to (4,3).