Answer:
2
Step-by-step explanation:
Please check the attached picture.
Steps:
- Mark two points on the line ( I have marked in green)
- Find out their coordinates (written in pink)
- use the formula [tex]\frac{y_{1}-y_{2} }{x_{1}-x_{2} }[/tex].
The two coordinates are:
(50,30) and (80,90)
[tex]\frac{30-90}{50-80}\\\\=\frac{-60}{-30}\\ =2[/tex]
