Answer:
2
Step-by-step explanation:
slope of line= [tex]\frac{y2-y1}{x2-x1}[/tex]
You can take any two points from the given points, put them in this formula and answer will be 2.
For example:
Lets take (7,1) and (8,3)
Slope= [tex]\frac{3-1}{8-7}[/tex]
=2/1=2
Hope it will help :)